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800G Transceivers Guide

800G Transceivers Guide

800G transceivers, Active Optical Cables (AOCs), and Direct Attach Copper (DAC) cables are cutting-edge components designed to support the next generation of high-speed networking in data centers, enterprise networks, and high-performance computing environments. With data rates of up to 800 Gigabits per second (Gbps), these components address the growing demand for higher bandwidth and more efficient data transmission.

Powering the Future of Data Centers with 800G Transceivers

JTOPTICS® 800G transceivers are built for the most demanding data center environments, delivering ultra-high-speed connectivity for AI, machine learning, big data, and cloud-scale applications. They enable lightning-fast data transfer between high-performance switches and servers, reduce latency, and support massive traffic volumes. Ideal for hyperscale and next-gen data centers looking to scale rapidly while maximizing efficiency and bandwidth.
JTOPTICS 800G Ultra High-Speed Transceiver for AI and Cloud-Driven Data Centers
JTOPTICS 800G Ultra High-Speed Transceiver for AI and Cloud-Driven Data Centers
800G-2XDR4 and 800G-2PLR4 Transceivers
800G-2XDR4 and 800G-2PLR4 Transceivers
Refers to 2x “400G-XDR4” or 2x “400G-PLR4” interfaces, as described above. 800G-2XDR4 / 2PLR4 modules have 2x MPO-12 connectors, enabling 2 physically distinct 400G-XDR4/PLR4 links from each 800G transceiver without the need for optical breakout cables. The image below illustrates the dual MPO-12 connectors used in an OSFP-800G-XDR4 transceiver.
800G-2FR4 / 800G-2LR4 Transceivers
800G-2FR4 / 800G-2LR4 Transceivers
Refers to 2x “400G-FR4” or 2x “400G-LR4” interfaces as described above. 800G-2FR4 / 2LR4 modules have 2 duplex LC connectors, enabling 2 physically distinct 400G- FR4/LR4 links from each 800G transceiver without the need for optical breakout cables. The image below illustrates the dual LC-duplex connector used on the OSFP-800G-2FR4 transceiver.

Frequently Asked Questions

In some instances - under two conditions.

i)          The 800G module must be capable of operation at ½ speed (with each electrical lane running at 50G PAM-4 instead of 100G PAM-4). The 800G-2XDR4 / 2PLR4 optics are not capable of dual-rate operation, so they cannot be used in 400G ports. JTOPTICS’s 800G-2FR4/LR4 transceivers, AOC and DAC cables can operate at ½ speed.

ii)         The 400G switch port must be capable of supporting the higher power draw of 800G modules. 800G modules draw more power than 400G modules, so should only be used in 400G platforms capable of powering and cooling the 800G modules. Refer to the transceiver and cable datasheet for transceiver power consumption, and JTOPTICS 400G switch platform datasheets for details on specific systems.

800G 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 2 when compared to 400G/port systems. Migrating from a 32x 400G/port to a 32x 800G/port system doubles the bandwidth density from 12.8T / RU to 25.6T / RU.

•           Easy aggregation of 400G links: All 800G/port systems can be configured as 2x 400G, and all JTOPTICS 800G optics allow 2 physically distinct 400GE links without the need for optical breakout cables.

•           High density 400G and ultra-high density 100G: A 32 port 1RU 800G system enables 64 ports of 400GE, or 256 ports of 100GE in a single RU. JTOPTICS offers 800G optics that enable 2x 400GE and 8x 100GE connectivity that interoperate with existing 400G and 100G optics.

800G optics and cables use the same form-factors used by 400G optics, the OSFP and the QSFP-DD..

•           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. When used for 800G, each electrical lane is modulated at 100Gb/s, for a total of bandwidth of 800Gb/s.

•           The QSFP-DD: The QSFP-DD stands for “Quad Small Form-factor Pluggable (QSFP) – Double Density (DD)”. The QSFP-DD form factor is similar to the QSFP form factor, with an additional second row of electrical contacts to increase the number of high-speed electrical lanes from 4 (in a QSFP) to 8 (in a QSFP-DD). When used for 800G, each electrical lane of the QSFP-DD is modulated at 100Gb/s, for a total bandwidth of 800Gb/s.

No. The OSFP and the QSFP-DD are two physically distinct form factors. For OSFP systems, OSFP optics and cables must be used, and for QSFP-DD systems, QSFP-DD optics and cables must be used.

Yes. The OSFP and QSFP-DD describe the physical form factor of the module. If the Ethernet media types are the same, the OSFP and QSFP-DD modules will interop with each other.

All 800G modules and cables utilize 8x electrical lanes in each direction (8 transmit lanes and 8 receive lanes), with each lane running at a data rate of 100G PAM-4, enabling an aggregate bandwidth of 800Gb/s per module. The optical output of all 800G transceivers also consist of 8 optical waves modulated at 100G PAM-4 per lane.

The H3C QSFPDD-800G-DR8-SM1310 is an 800GBASE-DR8 optical transceiver optimized for high-speed data transmission over single-mode fiber (SMF). Operating at a 1310nm wavelength with PAM4 modulation, it provides a transmission reach of up to 500 meters. This QDD transceiver supports both 2x 400G-DR4 a..
₹ 159,323.00
The H3C QSFPDD-800G-VR8-MM850-DMPO is an 800GBASE-SR8 transceiver designed for ultra-high-speed data transmission. Using the QSFP-DD form factor, it operates over multimode fiber (MMF) with an 850nm wavelength and supports PAM4 modulation. It delivers a reach of up to 100 meters and features MPO-16/..
₹ 152,771.00
The Juniper QDD-2X400G-DR4 is an 800GBASE-DR8 transceiver designed for high-speed data transfer in large-scale networks. It operates over single-mode fiber (SMF) with a 1310nm wavelength and PAM4 modulation, offering a reach of up to 500 meters. This QDD transceiver supports both 2x 400G-DR4 and 8x ..
₹ 159,323.00
The Juniper QDD-2X400G-FR4-P is an 800GBASE-2FR4 optical transceiver module designed for high-performance data communication. Operating at a wavelength of 1310nm and utilizing PAM4 modulation, it provides an impressive reach of up to 2 kilometers over single-mode fiber (SMF). This QDD transceiver su..
₹ 163,691.00
The Mellanox/Nvidia MCP4Y10-N is an 800G OSFP Direct Attach Cable (DAC) designed for high-speed, short-range connectivity in data centers and high-performance computing environments. It features OSFP-to-OSFP connectors and utilizes passive Twinax copper for efficient data transfer without the need f..
₹ 18,455.00
JTOPTICS OSFP 2*FR4 transceiver is a high-quality optical transceiver designed for 800 Gigabit Ethernet links over 2 km of single-mode fiber. This 800G FR 2km transceiver features 8 independent electrical input/output channels, each operating at speeds up to 106.25 Gbps. Comprising two transmitter/r..
₹ 174,611.00
JTOPTICS 800GBASE-2LR4 OSFP transceiver supports link lengths of up to 10 km over single-mode fiber (SMF) via dual LC connectors. It complies with IEEE 802.3ck, OSFP MSA, and CMIS Rev 5.0 standards. The transceiver features built-in digital diagnostics monitoring (DDM) for real-time access to operat..
₹ 283,811.00
JTOPTICS® 800G OSFP DR8 InfiniBand NDR and Ethernet transceiver is a high-quality optical transceiver designed for 800 Gigabit Ethernet links over 500 meters of single-mode fiber. It features 8 independent electrical input/output channels, each operating at speeds up to 106.25 Gbps. T..
₹ 130,931.00
JTOPTICS® 800G OSFP SR8 100m InfiniBand NDR and Ethernet Transceiver is a high-quality optical module designed for utilization in 800 Gigabit Ethernet links over multimode fiber. The module features 8 independent electrical input/output channels, operating at 106.25Gbps per channel. This t..
₹ 87,251.00
The MSA O800G-CLT-DR8 is an 800GBase-DR8 optical transceiver designed for high-speed data transmission in demanding network environments. It supports 2x 400G DR4 channels, using the OSFP form factor and operating over single-mode fiber (SMF) at 1310nm. The module offers a transmission range of up to..
₹ 130,931.00
The MSA O800G-CLT-SR8 is an 800GBase-SR8 optical transceiver module designed for high-speed data transmission. It uses the OSFP form factor and supports 2x 400G SR4 channels. Operating over multimode fiber (MMF) at 850nm, it offers a reach of up to 100 meters. The transceiver uses two MPO-12 APC con..
₹ 87,251.00
The Nvidia MMA4Z00-NS-CLT is an 800GBase-SR8 OSFP transceiver, supporting high-speed data transmission of up to 800Gbps. It operates over multimode fiber (MMF) at a wavelength of 850nm, providing a maximum reach of 100 meters. This transceiver is equipped with two MPO-12 APC connectors, enabling dua..
₹ 87,251.00
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