400G QSFP112 SR4 Liquid Immersion Cooling Active Optical Cable Om3 Multimode

JTOPTICS® Liquid-Immersion-Cooled 400G QSFP112 SR4 Active Optical Cable (AOC) is purpose-built for next-generation immersion-cooled data centers and high-performance computing environments, where extreme thermal efficiency, reliable high-speed data transfer, and cable durability under submerged operation are essential.

This premium AOC supports 400Gbps aggregate throughput, utilizing 4 parallel lanes of 100G PAM4 optical technology and advanced Forward Error Correction (FEC), delivering exceptional signal integrity and low latency performance. Engineered with coolant-sealed optical housings and ruggedized liquid-resistant materials, it prevents coolant ingress and ensures consistent performance in full-liquid immersion cooling tanks using dielectric fluids.

The cable is equipped with a high-density MPO-12 APC (Angled Physical Contact) connector, ensuring low optical reflection and superior connectivity stability. It supports transmission distances of up to 70m on OM3 and 100m on OM4 multimode fiber, making it an ideal interconnect for AI clusters, HPC infrastructure, cloud platforms, and hyperscale liquid-cooled server systems.

4 channels full-duplex transceiver modules

Transmission data rate up to 106.25G per channel

4×53.125GBd PAM4 technology providing up to 425Gbps with FEC

4 channels 850nm VCSEL array

4 channels PIN photo detector array

Internal CDR circuits on both receiver and transmitter channels

Power consumption <8W

Hot Pluggable QSFP112 form factor and Compliant with CMIS

Maximum link length of 60m on OM3 Multimode Fiber and 100m on OM4 with FEC

MPO-12 APC connector for high-density fiber connectivity

Built-in digital diagnostic functions

Operating case temperature 0°C to +70°C

3V power supply voltage

RoHS compliant (lead free)