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The switch end OSFP has a finned top for additional cooling and the QSFP112 HCA end is flat topped and uses riding heat sinks on the HCA OSFP cage
NADDOD OSFP-800G-CUBFH is a 2x400Gb/s twin-port OSFP (Octal Small Formfactor Pluggable) Flat Top to 2x400Gb/s twin-port OSFP Flat Top Direct Attached Copper cable (DAC)
An ACC is a passive DAC with a pre-emphasis equalizer IC included in each end
NADDOD offers Mellanox MFA1A00-E010/MFA1A00-E010_FF Compatible 10m (33ft) 100G QSFP28 Active Optical Cable (AOC) for SB7800/SB7890
The two 400G ends support 4-channels of 50G-PAM4 (200GbE/HDR) and use a flat top QSFP56 for use in Quantum switch cages
NVIDIA/Mellanox MCP7Y70-H002 Compatible DAC 2m (7ft) 400Gb/s OSFP to 4x100Gb/s QSFP56 InfiniBand HDR Passive Copper Splitter Cable 200G HDR The switch end OSFP hasDescription NADDOD O4Q56 400G CU2H is a passive Direct Attach Copper (DAC) cable with an OSFP based twin port 2x200Gb s connector to four QSFP56. DAC cables are the lowest cost, lowest latency, near zero power consuming, high speed links available due to their simplicity of design and minimal components. Main use is linking Quantum 2 NDR InfiniBand switches to HDR100 switches, ConnectX 6 7 adapters, and or BlueField 2 3 DPUs.