NVIDIA® MCP4Y10 is an 2x400Gb/s twin-port OSFP (Octal Small Formfactor Pluggable) to 2x400Gb/s twin-port OSFP Direct Attached Copper cable (DAC).
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. Using the Octal Small Formfactor Plug (OSFP) and containing eight high-speed electrical copper pairs, each operating at data rates of up to 100Gb/s.
The DAC firmware supports both InfiniBand and Ethernet and is automatically enabled depending on the protocol of the switch attached to. EEPROMs provide product configuration information to be read by the host. Every cable length is tuned to reduce internal signal noise and back reflections.
The main use for the MCP4Y10 is to link together two twin-port, OSFP-based Quantum-2 InfiniBand or Spectrum-4 Ethernet switches to each other up to 2-meters with both ends being finned-top connectors.
OSFP flat top (designated -FLT in the part number) cable ends are available for liquid-cooled switches and DGX H100 systems with a flat top for the DGX H100 and finned top connector for the InfiniBand or Ethernet switch. Thin 30AWG wire gauge is used for 0.5m to 2m for easy bending.
Use case illustration
- 2x400Gb/s data rate
- Based on 8-channels of 100G-PAM4 modulation
- 0.5, 1, 1.5, and 2-meter lengths
- SFF-8665 compliant
- Operating case temperature 0-70°C
- Single 3.3V supply voltage
- Hot pluggable
- RoHS compliant
- LSZH (Low Smoke Zero Halogen) jacket
- LF (Lead Free) HF (Halogen Free) PCB
- OSFPxmsa.org based
- SFF-8636 compliant I2C management interface
2x400Gb/s Quantum-2 InfiniBand or Spectrum-4 Ethernet switch-to-switch and switch-to-DGX-H100