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The 400G QSFP-DD LR4 optical transceiver delivers ultra-high-density 400 Gigabit Ethernet connectivity for data centers and high-performance computing (HPC) networks
It is perfect for short-range server-to-switch connections in low-latency 200G networking architectures
and cloud data center ToR/Leaf architectures
NVIDIA Original MMS4X00-NS is an InfiniBand and Ethernet 800Gb/s 2x400Gb/s Twin-port OSFP
enabling an aggregate throughput of 800Gb/s
Arista Networks CAB-O-O-400G-1M Compatible 1m (3ft) 400G OSFP Finned Top to OSFP Finned Top Passive Direct Attach Copper Twinax Cable Model:OSFP-400G-CU1 The 400G QSFP-DD LR4 opticalDescription The OSFP 400G DAC provides an OSFP to OSFP copper direct attach solution with a finned top form factor. It is designed with ultra low loss materials, square rings, twisted pair cable 8 wires and shell extension construction for superior mechanical properties and bending performance and used only in air cooled switches.