Item Spotlights
NVIDIA/Mellanox Original MMS4A20-XM800 single port transceiver, 800Gbps, OSFP DR4, MPO, APC 1310nm SMF, up to 500m, RHS
The NVIDIA MMS4A20-XM800 is an 800Gb/s single-port OSFP optical transceiver designed for XDR 800Gb/s InfiniBand networking over single-mode fiber. It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12/APC optical connector is used per transceiver.
