MCP7Y70-Hxxx 400Gb/s Twin-port 2x200G OSFP to 4x100G QSFP56 DAC Splitter Product Specifications

MCP7Y70-Hxxx 400Gb_s Twin-port 2x200G OSFP to 4x100G QSFP56 DAC Splitter Product Specifications

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NVIDIA® MCP7Y70 is a passive Direct Attach Copper (DAC) cable with an OSFP-based twin-port 2x 200Gb/s connector to four 200Gb/s QSFP56s, and is a high-speed 100Gb/s splitter cable for InfiniBand and Ethernet networking. The DAC firmware supports both InfiniBand and Ethernet and is automatically enabled depending on the protocol of the switch attached to.

The 8-channel twin-port OSFP end uses a finned top form-factor for use in Quantum-2 and Spectrum-4 switch cages. The four 100G ends support 2-channels of 50G-PAM4 (100GbE/HDR100) and use a flat top QSFP56 for use in ConnectX-6/7 adapters and BlueField-2/3 DPUs using riding heat sinks on the connector cage.

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. The “passive” term refers to the copper cable containing no electronics in the data path. Each end includes an EEPROM which provides product identification and characteristics to the host system. Every cable length is tuned to reduce internal signal noise and back reflections. Thin 30AWG is used for 1 and 1.5-meter lengths and thicker 26AWG for 2-meters.

Main use is linking Quantum-2 NDR InfiniBand and Spectrum-4 Ethernet switches to HDR100/100GbE switches, ConnectX-6/7 adapters, and/or BlueField-2/3 DPUs up to 2-meters.

NVIDIA’s cable solutions provide power-efficient connectivity enabling higher port bandwidth, density and configurability at a low cost and reduced power requirement in the data centers. Rigorous cable production testing ensures best out-of-the-box installation experience, performance, and durability.


Images are for illustration purposes only. Product labels, colors, and lengths may vary.

Key Features

  • 400Gb/s to four 100Gb/s data rates
  • Based on 2-channel 50G-PAM4 modulation
  • 1, 1.5, and 2-meter lengths
  • OSFP and QSFP112 ends each consume 0.1 Watts
  • OSFP head end is CMIS based
  • QSFP112 ends are SFF-8636 based
  • 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
  • OSFP and SFF-8665 compliant
  • SFF-8636 compliant I2C management interface (QSFP ends)
  • CMIS compliant I2C management interface (OSFP end)


  • 2x200G 2xHDR InfiniBand Quantum-2 or Spectrum-4 Ethernet switch-to-four 100Gb/s switches, QSFP28/56/112 ConnectX-5/6/7, and/or BlueField-2/3 DPUs
© Copyright 2023, NVIDIA. Last updated on Jun 1, 2023.