400G QSFP56-DD PCC (1~3m)

GIGALIGHT’s 400G QSFP56-DD PCC passive direct attach copper cable is designed for intra-rack or inter-rack interconnects in data centers. It complies with the ETC 400GBASE-CR8 Ethernet transmission protocol and is also compatible with the InfiniBand NDR transmission protocol. This series of products utilizes 16 pairs of coaxial cables to transmit 8x 50G PAM4 signals, with a maximum reach of 2m (30AWG) or 3m (26AWG).


  • Utilizes QSFP-DD hot-pluggable module and coaxial cable assembly
  • 8-channel 50G PAM4 modulation
  • Maximum per-channel data rate of 53.125Gbps
  • Complies with QSFP-DD MSA, CMIS, and ETC 400GBASE-CR8 Ethernet transmission protocols
  • Compatible with InfiniBand HDR transmission protocol
  • Customizable cable length up to 2m (30AWG) or 3m (26AWG)
  • Bit Error Rate (BER) better than 1E-15
  • Near-zero power consumption
  • I2C management interface
  • Power supply voltage of 3.3V
  • LSZH (Low Smoke Zero Halogen) cable jacket material
  • LF (Lead-Free) HF (Halogen-Free) PCB
  • Complies with RoHS environmental standards (Lead-Free)
Product Model GQD-PC401-xxC
Distance (Meter) 1~2 3
Cable Gauge (AWG) 30/26 26

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