NVIDIA Mellanox MCP1650-V00AE30 QSFP56 200GbE Passive Copper DAC 0.5m: This is a 0.5m passive direct attach copper (DAC) cable engineered for 200GbE Ethernet point-to-point interconnectivity. The cable uses twinax conductors with QSFP56 connectors on both ends. This is a passive copper assembly with no signal conditioning — it is not an active copper cable, not an active optical cable, and not a transceiver. This is a refurbished unit.
Engineering Context
The MCP1650-V00AE30 is engineered for 200GbE Ethernet using 4x50G PAM4 lane signalling on QSFP56. At 0.5m this length sits well within the passive copper reach budget for 200GbE PAM4. Passive copper DACs introduce zero added latency from signal regeneration, ideal for short ToR-to-host or intra-rack switch interconnects. The LSZH jacket is specified for data centers with strict fire safety codes. PAM4 signalling at 200GbE requires the host and switch ports to support and enable RS-FEC.
Deployment & Use Cases
NVIDIA Spectrum-2 SN3000 series and Spectrum-3 SN4000 series 200GbE switch ToR-to-host links. ConnectX-6 / ConnectX-6 Dx EN adapter uplinks at 200GbE. Inter-switch links between adjacent rack switches at the same row. AI training storage fabric within compact pods where short-reach DACs minimise cable bulk.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1650-V00AE30
Form Factor: QSFP56 to QSFP56
Cable Type: Passive Copper DAC
Data Rate: 200GbE (4x50G PAM4)
Protocol: 200GbE Ethernet
Length: 0.5m
Wire Gauge: 30AWG
Jacket: LSZH (Low Smoke Zero Halogen)
Connector Type: Latching QSFP56
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum-2 (SN3000) and Spectrum-3 (SN4000) switches with QSFP56 200GbE ports, and with ConnectX-6 / ConnectX-6 Dx EN adapters. Requires switch ports configured for 200GbE PAM4 with RS-FEC enabled. Not an InfiniBand HDR cable — for HDR fabric, use the H-series (MCP1650-H) variant. Fixed point-to-point cable; no native breakout to 4xSFP56 / 4x50G on this assembly. Not an active or optical cable; reach is bounded by the passive copper budget at PAM4.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every passive DAC for connector continuity, mechanical condition, and link integrity at rated speed before shipment. We provide expert consultation on high-speed fabric cabling, global shipping, and 1–3 day handling. Visit tes-itsolutions.com to learn more.