Your shopping cart is empty!
“SR” refers to 100m reach using multi-mode fiber, and “8” implies there are 8 optical channels. Each of the 8 optical channels from an SR8 module are carried on separate fibers, resulting in a total of 16 fibers (8 Tx and 8 Rx). Each optical channel operates at 50Gb/s. The SR8 module uses an MPO-16 APC connector to connect to 8 fiber pairs. The SR8 module can be configured for 400G- SR8, 2x 200G-SR4 and (operating at ½ rate) 2x 100G-SR4.
“VSR” refers to 50m reach using multimode fiber, and the “4” implies there are 4 optical channels. Each of the 4 optical channels are carried on separate fibers, resulting in a total of 4 pairs of fibers. Each optical channel operates at 100Gb/s. There are two IEEE defined standards for 100G/wave MMF optics: 400GBASE-SR4 (for 100m reach over parallel OM4 MMF), and 400GBASE-VR4 (for 50m reach over parallel OM4 MMF).
“DR” / “XDR” / “LR” refer to 500m / 2km / 10km reach using single-mode fiber, and “4” implies there are 4 optical channels. Each of the 4 optical channels are carried on separate fibers, resulting in a total of 4 pairs of fibers. Each optical channel operates at 100Gb/s. The DR4 / XDR4 / PLR4 modules use the widely deployed MPO-12 APC SMF connector to connect to 4 fiber pairs.
“FR” / “LR” refers to 2km / 10km reach using single-mode fiber, and “4” implies there are 4 optical channels. Unlike the DR4 and SR8, all 4 optical channels from an FR4 / LR4 are multiplexed onto one fiber, resulting in a total of 2 fibers from the module (1 Tx and 1 Rx). Each optical channel operates at 100Gb/s. The modules use a duplex LC optical connector.
QSFP-DD is a highly versatile and high-density transceiver designed to support 400 Gbps data rates. It features 8 lanes of 50 Gbps each, using PAM4 (Pulse Amplitude Modulation with 4 levels) signaling.
Data Rate: Up to 400 Gbps
Electrical Lanes: 8 lanes of 50 Gbps (PAM4)
Compatibility: Backward compatible with QSFP, QSFP+, and QSFP28 modules
QSFP56-DD is an evolution of the QSFP-DD form factor, maintaining double density while offering enhanced performance with 8 lanes of 50 Gbps each, using PAM4 signaling.
Data Rate: Up to 400 Gbps
Electrical Lanes: 8 lanes of 50 Gbps (PAM4)
Compatibility: Backward compatible with QSFP, QSFP+, QSFP28, and QSFP56 modules
QSFP112 is a future-focused transceiver, designed to support higher data rates with 4 lanes of 100 Gbps each, using PAM4 signaling, offering a significant performance upgrade.
Data Rate: Up to 400 Gbps
Electrical Lanes: 4 lanes of 100 Gbps (PAM4)
Compatibility: Expected to be backward compatible with QSFP, QSFP+, QSFP28, and QSFP56 modules
The OSFP (Octal Small Form-factor Pluggable) features 8 electrical lanes capable of 50 Gbps each, using PAM4 (Pulse Amplitude Modulation with 4 levels) signaling. Slightly larger than the QSFP-DD form factor, the OSFP is optimized for thermal performance and power handling.
Data Rate: Up to 400 Gbps
Electrical Lanes: 8 lanes of 50 Gbps (PAM4)
Compatibility: Not directly backward compatible with QSFP modules, but adapters are available to provide some level of compatibility
The QSFP-DD form factor is based on the QSFP form factor with an extra row of electrical pins added. It allows strict backwards compatibility with 40G and 100G QSFP modules. To dissipate the larger power of 400G modules, the QSFP-DD relies on an external heatsink that is part of the switch platform – i.e. when a QSFP-DD module is inserted into a QSFP-DD port, the platform must provide a heatsink that makes contact with the QSFP- DD module with sufficient pressure to guarantee a low thermal resistance interface.
The OSFP form factor was designed from the ground up for optimal performance at 400G and 800G. It allows for backwards compatibility to 40G and 100G QSFP optics using the ADPT-O-Q-100G passive adapter. A key difference of the OSFP is that the heatsink is integrated into the module case itself. This has the advantage of ensuring the best possible thermal contact between the power dissipating components and the heatsink, enabling better thermal performance. The OSFP also has approximately 50% more surface area than the QSFP-DD, enhancing the ability of the module to dissipate heat.
400G platforms allow data centers and high-performance computing environments to address growing needs for higher bandwidth at lower cost and power per gigabit. Key benefits include:
• Increase switching bandwidth by a factor of 4. Migrating from 100G to 400G systems increases the bandwidth per RU from 3.2-3.6T to 12.8-14.4T / RU.
• Enable higher density 100G ports using optical or copper breakouts. A 32 port 1RU 400G system enables 128 100GE ports / RU. This enables a single Top of Rack (TOR) leaf switch to connect to multiple racks of servers or Network Interface Cards (NICs).
• Reduce the number of optical fiber links, connectors, and patch panels by a factor of 4 when compared to 100G platforms for the same aggregate bandwidth.
• Enable 2-4X lower cost and power / bit, reducing capex and opex.
There are two form-factors defined for 400G optical modules and cables:
• The OSFP: The OSFP stands for “Octal Small Form-factor Pluggable”. It is described as an “Octal” module because the electrical interface of an OSFP connector consists of 8 electrical lanes, running at 50Gb/s each, for a total of bandwidth of 400Gb/s.
• The QSFP-DD: The QSFP-DD stands for “Quad Small Form-factor Pluggable (QSFP) – Double Density (DD)”. The electrical interface of a QSFP-DD connector also has 8 electrical lanes, running at 50Gb/s each, for a total bandwidth of 400Gb/s. The QSFP-DD form factor is similar to the QSFP form factor, except a second row of electrical contacts has been added to increase the number of high-speed electrical lanes from 4 (in a QSFP) to 8 (in a QSFP-DD).
No. The OSFP and the QSFP-DD are two physically distinct form factors. If you have an OSFP system, then OSFP optics and cables must be used. If you have a QSFP-DD system, then QSFP-DD optics and cables must be used.
Yes. The OSFP and QSFP-DD describe the physical form factor of the module. As long as the Ethernet media types are the same (i.e. both ends of the link are 400G-DR4, or 400G-FR4 etc.), OSFP and QSFP-DD modules will interop with each other.
Yes, the 400G-DR4 / XDR4 / PLR4 transceivers can interoperate with each other, with the max distance limited by the shortest reach transceiver.
400G
transceivers, Active Optical Cables (AOCs), and Direct Attach Copper (DAC)
cables are critical components for high-speed networking in modern data
centers, enterprise networks, and high-performance computing environments.
These components support data rates of up to 400 Gigabits per second (Gbps),
providing the bandwidth necessary to handle today's data-intensive
applications.
JTOPTICS® 400G QSFP-DD AOC (active optical cable) is a 400 Gb/s parallel active optical cable, which transmits parallel 8×50 Gb/s PAM4 signals over multi-mode fiber (MMF) cables up to 100m. It is compliant with QSFP-DD MSA and the CMIS 4.0. The 400G QSFP56-DD AOC cables supports eight electrical interface lanes, each of which operate in the data rate of 53.125G, with an overall aggregate bandwidth up to 425Gb/s. These modules of cables are designed to operate over multi-mode fiber systems using a nominal wavelength of 850nm.The electrical interface uses a 76 contact edge type connector. This active optical cable is compliant with IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA, and QSFP-DD-CMIS-rev4p0.Hot-pluggable QSFP-DD active optical cable assemblies8x 50G PAM4 electrical interface8x 50G PAM4 optical interfaceData rate up to 53.125Gbps per channel.8-channels 850nm VCSEL array and PIN photo-detector arrayCompliant with QSFP-DD MSA, CMIS and IEEE 802.3Low power dissipationCompliant with IEEE..
JTOPTICS 400G OSFP DAC (Passive Direct Attach Copper) enables high bandwidth 400G links and supports 400G Ethernet rate. It is high-speed, cost-effective alternatives to fiber optics in 400G Ethernet applications. The 400G OSFP DAC cable contains 16 high-speed copper pairs, each operating at data rates of up to 53Gb/s, which are suitable for very short links and offer a cost-effective and power-efficient way to establish a 400-Gigabit link between OSFP-400G ports of switches/routers within racks and across adjacent racks. They enable higher port bandwidth, density and configurability at a low cost and reduced power requirement in the data centers. Hot-pluggable OSFP form factor Data rate up to 425Gbps.8x 53Gb/s PAM4 modulation OSFP MSA, CMIS and IEEE 802.3 compliant Operating case temperature of 0-70℃ Copper link length up to 3m Single 3.3V supply voltage Bit Error Rate (BER) better than 1E-15 RoHS compliantData rate up to 53.125Gbps per channel...
The Arista AOC-D-D-400G is a 400G Active Optical Cable (AOC) designed for high-speed data transfer between QSFP-DD (Quad Small Form-Factor Pluggable Double Density) ports. Utilizing OM3 multimode fiber, it supports 400Gbps Ethernet for short-range connections in data centers and high-performance networks. The active optical design ensures superior signal quality, reduced latency, and low power consumption, making it an ideal solution for high-density environments. With enhanced reach over traditional copper cables, the Arista AOC-D-D-400G provides efficient, reliable, and scalable connectivity for modern infrastructures that demand robust performance and seamless data transmission in demanding network applications...
The Cisco QDD-400-AOC is a 400G Active Optical Cable (AOC) designed for high-speed, short-distance data transmission in data centers and enterprise networks. It features QSFP-DD (Quad Small Form-Factor Pluggable Double Density) connectors on both ends and uses OM3 multimode fiber to support 400Gbps Ethernet. This AOC offers excellent signal integrity, lower power consumption, and reduced latency, making it ideal for high-density, high-performance environments. Its active optical design allows for extended reach compared to copper alternatives, while maintaining efficient and reliable connectivity. The Cisco QDD-400-AOC is a robust solution for demanding workloads and scalable network architectures...
The Dell AOC-Q56DD-400G is a 400G Active Optical Cable (AOC) designed for connecting QSFP-DD (Quad Small Form-Factor Pluggable Double Density) ports using OM3 multimode fiber. This high-performance cable supports 400Gbps Ethernet, making it ideal for short-range data transmission in data centers, cloud infrastructures, and high-performance computing environments. With an active optical design, it provides superior signal integrity, reduced latency, and lower power consumption compared to traditional copper cables. The Dell AOC-Q56DD-400G ensures reliable, scalable, and energy-efficient connectivity, making it an excellent choice for high-density networks that require fast, seamless data transfer and robust performance...
The Juniper QDD-400G-AOC is a 400G Active Optical Cable (AOC) designed to connect QSFP-DD (Quad Small Form-Factor Pluggable Double Density) ports using OM3 multimode fiber. This high-performance cable supports 400Gbps Ethernet, ideal for short-distance connections in data centers, cloud environments, and high-performance computing. The active optical design delivers superior signal integrity, reduced latency, and lower power consumption, offering a significant advantage over copper alternatives. Optimized for high-density and scalable network infrastructures, the Juniper QDD-400G-AOC provides reliable and efficient connectivity, ensuring seamless data transmission in demanding, bandwidth-intensive applications that require robust and flexible networking solutions...
The Mellanox/Nvidia MFA1W00-W is a 400G Active Optical Cable (AOC) designed for high-speed connections between QSFP-DD (Quad Small Form-Factor Pluggable Double Density) ports. Utilizing OM3 multimode fiber, this AOC supports 400Gbps Ethernet, making it ideal for short-distance, high-bandwidth applications in data centers and cloud environments. Its active optical design ensures enhanced signal integrity, reduced latency, and improved power efficiency compared to copper cables, allowing for reliable performance in high-density setups. The Mellanox/Nvidia MFA1W00-W offers seamless, scalable connectivity, meeting the demands of modern network infrastructures with its robust, low-latency, and energy-efficient operation...
JTOPTICS 400G QSFP-DD DAC (Passive Direct Attach Copper) enables high-bandwidth 400G links and supports 400G Ethernet rate. It is high-speed, cost-effective alternatives to fiber optics in 400G Ethernet applications. The 400G QSFP-DD DAC cable contains 16 high-speed copper pairs, each operating at data rates of up to 53Gb/s, which are suitable for very short links and offer a cost-effective and power-efficient way to establish a 400-Gigabit link between QSFP-400G ports of switches/routers within racks and across adjacent racks. They enable higher port bandwidth, density and configurability at a low cost and reduced power requirement in the data centers. Hot-pluggable QSFP-DD form factor Data rate up to 425Gbps.8x 53Gb/s PAM4 modulation QSFP-DD MSA, CMIS and IEEE 802.3 compliant Operating case temperature of 0-70℃ Copper link length up to 3m Single 3.3V supply voltage Bit Error Rate (BER) better than 1E-15 RoHS compliantData rate up to 53.125Gbps ..
JTOPTICS® 400Gbps LR4 transceiver module is a 400Gb/s Quad Small Form Factor Pluggable double density (QSFP DD) optical module designed for 10km optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals, and multiplexes them into a single channel for 400Gb/s optical transmission. Reversely, on the receiver side, the module optically de multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals, and converts them to 8 channels of 50Gb/s (PAM4) electrical output data. The module offers very high functionality and feature integration, accessible via a two wire serial interface.QSFP DD MSA and CMIS compliant Compliant to 400G LR4 Technical Specification 8x53.125Gbit/s PAM4 electrical interface(400GAUI 8) 4x106.25Gbps(53.125GBd PAM4)Optics architecture Power consumption <12W Maximum link length of 10Km G.652 SMF with KP FEC Full Duplex LC connector&nb..
400G QSFP-DD SR4 transceiver modules are designed for use in 400 Gigabit Ethernet links on up to 100m of OM4 multi-mode fiber. They are compliant with the QSFP-DD MSA and IEEE 802. 3db.The optical transceiver is RoHS compliant. Hot-pluggable QSFP-DD Type 2 form factorSupports 425Gb/s aggregate bit ratePower dissipation <10WCommercial case temperature range of 0°C to 70°CSingle 3.3V power supplyMaximum link length of 100m on OM4 multimode Fiber (MMF)Aligned with IEEE 802.3db4x100G PAM4 VCSEL-based 850nm transmitter4x100G PAM4 retimed 400GAUI-4 electrical interfaceMPO-12 receptaclesI2C management interface RoHS compliant..
JTOPTICS® 400G QSFP56-DD AOC (active optical cable) is a 400 Gb/s parallel active optical cable, which transmits parallel 4X100 Gb/s PAM4 signals over multi-mode fiber (MMF) cables up to 100m. It is compliant with QSFP56-DD MSA and the CMIS 4.0. The 400G QSFP56-DD AOC cables supports eight electrical interface lanes, each of which operate in the data rate of 100G, with an overall aggregate bandwidth up to 425Gb/s. These modules of cables are designed to operate over multi-mode fiber systems using a nominal wavelength of 850nm.The electrical interface uses a 76 contact edge type connector. This active optical cable is compliant with IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA, and QSFP-DD-CMIS-rev4p0.Hot-pluggable QSFP-DD active optical cable assemblies4x 100G PAM4 electrical interface4x 100G PAM4 optical interfaceData rate up to 100Gbps per channel.8-channels 850nm VCSEL array and PIN photo-detector arrayCompliant with QSFP-DD MSA, CMIS and IEEE 802.3Low power dissipationCompliant with IEE..
The Arista CAB-D-D-400G is a 400G DAC (Direct Attach Cable) designed to connect high-speed networking devices, such as switches and servers, in data centers. This cable features QSFP-DD (Quad Small Form-factor Pluggable Double Density) connectors on both ends, utilizing passive Twinax copper for direct, low-latency transmission without the need for additional power. With support for up to 400Gbps data transfer, it ensures efficient and reliable short-range connections in high-performance, high-density environments. The CAB-D-D-400G offers a cost-effective and energy-efficient solution, making it ideal for applications requiring fast, stable networking with minimal infrastructure complexity...
The Arista QDD-400G-LR4 is a high-performance optical transceiver designed for efficient data transmission in 4 x 100GBASE-LR configurations. Operating at a wavelength of 1310nm, this QSFPDD module provides an impressive reach of up to 10 kilometers over single-mode fiber (SMF), making it ideal for long-distance networking applications. It features MPO-12/APC connectors, ensuring reliable and high-quality connections. Additionally, the transceiver incorporates Digital Optical Monitoring (DOM) for real-time diagnostics and performance tracking, allowing network administrators to monitor link health and performance. The QDD-400G-LR4 is engineered to deliver scalable and efficient connectivity solutions for modern data centers and high-bandwidth environments...
The Cisco QDD-400-CU is a 400G DAC (Direct Attach Cable) designed for high-speed connectivity in modern data centers. It features QSFP-DD (Quad Small Form-factor Pluggable Double Density) connectors on both ends, utilizing passive Twinax copper for direct, low-latency data transmission. Supporting up to 400Gbps, this straight cable provides an efficient, cost-effective solution for short-distance links between networking devices like switches and servers. Ideal for high-performance, high-density environments, the QDD-400-CU offers plug-and-play functionality with low power consumption, making it an excellent choice for applications requiring reliable, high-speed connections without additional power requirements...
The Cisco QDD-4X100G-LR-S is a high-performance optical transceiver designed to support 4 x 100GBASE-LR configurations, making it ideal for long-distance data transmission. Operating at a wavelength of 1310nm, this QSFPDD module achieves a transmission reach of up to 10 kilometers over single-mode fiber (SMF). It features MPO-12/APC connectors, ensuring reliable and efficient connectivity for various networking applications. Additionally, the transceiver includes Digital Optical Monitoring (DOM) for real-time diagnostics and performance tracking, enabling network administrators to monitor link health effectively. The QDD-4X100G-LR-S is engineered to provide scalable and efficient connectivity solutions for modern data centers and high-bandwidth network environments...
The Dell 470-BBGD 400G QSFP56 Active Optical Cable (AOC) is a high-performance, multimode OM3 fiber solution designed for high-speed data transmission over short distances. It connects two QSFP56-DD (Quad Small Form-Factor Pluggable Double Density) ports, supporting 400Gbps Ethernet and optimized for data centers and high-performance computing environments. With its active optical design, the cable offers enhanced signal integrity, low power consumption, and longer reach compared to copper alternatives. Ideal for high-density applications, the Dell 470-BBGD provides reliable, low-latency performance for demanding workloads, ensuring seamless connectivity and efficient operation in advanced networking setups. It is a robust, scalable choice...
The Dell DAC-Q56DD-400G is a 400G DAC (Direct Attach Cable) designed for short-range, high-speed data transfer in data centers and enterprise networks. This passive Twinax copper cable connects devices with QSFP-DD (Quad Small Form-factor Pluggable Double Density) ports, supporting data rates up to 400Gbps. It offers a low-latency, energy-efficient solution for high-bandwidth communication between switches, servers, and routers. The direct-attached, plug-and-play nature of the DAC-Q56DD-400G ensures seamless connectivity without the need for power-consuming active components, making it an ideal cost-effective solution for dense, high-performance network environments...
The Arista Juniper QDD-400G-DAC is a high-performance 400G DAC (Direct Attach Cable) designed for data centers and enterprise networking environments. It connects devices with QSFP-DD (Quad Small Form-factor Pluggable Double Density) ports, supporting up to 400Gbps data transmission. Using passive Twinax copper, the cable provides a low-latency, power-efficient connection without the need for active components. Its straightforward plug-and-play design is ideal for short-range links between switches, routers, and servers. The QDD-400G-DAC ensures reliable, high-speed performance, making it a cost-effective solution for dense, high-bandwidth networks in modern data center infrastructure...
The Juniper QDD-4X100G-LR is a robust optical transceiver designed for high-speed data transmission, specifically supporting 4 x 100GBASE-LR configurations. Operating at a 1310nm wavelength, this QSFPDD module achieves an impressive reach of up to 10 kilometers over single-mode fiber (SMF), making it ideal for long-distance networking applications. The transceiver features MPO-12/APC connectors for reliable and efficient connectivity. Equipped with Digital Optical Monitoring (DOM), it allows for real-time diagnostics and performance tracking, ensuring optimal network performance. The QDD-4X100G-LR is engineered to deliver scalable and efficient connectivity solutions, perfect for modern data centers and high-bandwidth network environments...
The Mellanox/Nvidia MCP1660-W is a 400G DAC (Direct Attach Cable) designed for connecting devices with QSFP-DD (Quad Small Form-Factor Pluggable Double Density) interfaces. This passive Twinax copper cable supports data transmission speeds of up to 400Gbps, making it ideal for high-performance computing, data centers, and cloud infrastructures. The MCP1660-W provides a cost-effective, low-latency, and power-efficient solution for short-distance interconnects, offering plug-and-play simplicity without requiring external power. Its robust construction and reliable performance make it a perfect choice for large-scale network environments, delivering high bandwidth and seamless data flow between switches, servers, and other networking hardware...
The Nvidia MMS1V90-WR is a high-performance optical transceiver designed for efficient data transmission in 4 x 100GBASE-LR configurations. Operating at a wavelength of 1310nm, this QSFPDD module offers an impressive reach of up to 10 kilometers over single-mode fiber (SMF), making it ideal for long-distance networking applications. It features MPO-12/APC connectors, ensuring reliable and high-quality connectivity. The transceiver is equipped with Digital Optical Monitoring (DOM), providing real-time diagnostics and performance tracking to help network administrators maintain optimal link health. The MMS1V90-WR is engineered to deliver scalable and efficient connectivity solutions, catering to the needs of modern data centers and high-bandwidth environments...
JTOPTICS® 400G QSFP112 AOC (active optical cable) is a 400 Gb/s parallel active optical cable, which transmits parallel 8×50 Gb/s PAM4 signals over multi-mode fiber (MMF) cables up to 100m. It is compliant with QSFP112 MSA and the CMIS 4.0. The 400G QSFP112 AOC cables supports eight electrical interface lanes, each of which operate in the data rate of 53.125G, with an overall aggregate bandwidth up to 425Gb/s. These modules of cables are designed to operate over multi-mode fiber systems using a nominal wavelength of 850nm.The electrical interface uses a 76 contact edge type connector. This active optical cable is compliant with IEEE 802.3cd, OIF-CEI-04.0, QSFP112 MSA.Hot-pluggable QSFP112 active optical cable assemblies8x 50G PAM4 electrical interface8x 50G PAM4 optical interfaceData rate up to 53.125Gbps per channel.8-channels 850nm VCSEL array and PIN photo-detector arrayCompliant with QSFP112 MSA, CMIS and IEEE 802.3Low power dissipationCompliant with IEEE 802.3cd 200GBASE-SR4 and I..
400G QSFP112 DR4 transceiver modules are specifically engineered for use in 400 Gigabit Ethernet (GbE) links, supporting data transmission over distances of up to 500 meters on single-mode fiber (SMF). These modules adhere to several key standards, including the QSFP112 Multi-Source Agreement (MSA), IEEE 802.3bs for 400GbE, and the 100G Lambda MSA, ensuring broad compatibility and interoperability with other network equipment.JTOPTICS 400G QSFP112 DR4 transceiver modules a reliable and efficient choice for high-speed, long-distance Ethernet links, particularly in data centers and enterprise networks. Hot-pluggable QSFP112 Type 2A form factorSupports 425Gb/s aggregate bit ratePower dissipation <8WCommercial case temperature range of 0°C to 70°CSingle 3.3V power supplyMaximum link length of 500m on Single Mode Fiber (SMF)Aligned with IEEE 802.3bs4x100G PAM4 EML-based 1310nm transmitter4x100G PAM4 retimed 400GAUI-4 electrical interfaceMPO-12 receptaclesI2C management interface ..
400G QSFP112 FR4 transceiver modules are designed to support 400 Gigabit Ethernet (GbE) links, enabling high-speed data transmission over distances of up to 2 km on single-mode fiber (SMF). These transceivers are built to meet rigorous industry standards, ensuring compatibility and interoperability with a wide range of network equipment.JTOPTICS 400G QSFP112 FR4 transceiver modules offer a robust and reliable solution for extending 400GbE links over longer distances, making them an excellent choice for network operators seeking to upgrade their infrastructure to support higher data rates and greater reach. Hot-pluggable QSFP112 Type 2A form factorSupports 425Gb/s aggregate bit ratePower dissipation <8WCommercial case temperature range of 0°C to 70°CSingle 3.3V power supplyMaximum link length of 2km on Single Mode Fiber (SMF)Aligned with IEEE 802.3cu4x100G PAM4 EML-based CWDM transmitter4x100G PAM4 retimed 400GAUI-4 electrical interfaceDuplex LC receptaclesI2C management interfa..
