NVIDIA Mellanox MCP1600-C002 100GbE QSFP28 Passive Copper Cable, 2m: This is a 2-meter passive copper direct-attach cable (DAC) engineered for 100Gb/s Ethernet (100GbE) point-to-point interconnects at short reach. It is a fixed QSFP28-to-QSFP28 twinaxial assembly with no active electronics, no protocol conversion, and no breakout. This is not an active copper cable, AOC, or transceiver. This is a refurbished unit.
Engineering Context
The MCP1600-C002 is built for in-rack 100GbE interconnects where the run is under 3m and budgets favor passive copper over optics. As a fully passive cable it draws 0W from the host port and produces no heat at the connector, simplifying thermal management in dense Top-of-Rack deployments. It carries 4 lanes at 25Gb/s NRZ, with RS-FEC handled by the host NIC or switch ASIC. The 2m length is the most common DAC size for ToR-to-server cabling, accommodating standard 1U and 2U rack arrangements. Latency is minimal compared to optics because there is no electrical-to-optical conversion.
Deployment & Use Cases
Top-of-Rack switch-to-server 100GbE links inside a single rack. Storage server uplinks where a low-power, low-latency copper alternative to AOCs is preferred. ConnectX adapter to Spectrum switch ports in dense compute pods. Lab, staging, and burn-in environments where AOC bend-radius fragility is a concern.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1600-C002
Form Factor: QSFP28 to QSFP28 (Point-to-Point)
Cable Type: Passive Copper DAC (Twinaxial)
Data Rate: 100GbE (4x 25Gb/s NRZ)
Length: 2m
Power Draw: 0 W (fully passive)
Protocol: 100GbE Ethernet
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum series switches (SN2000, SN3000, SN4000) and ConnectX-4 / ConnectX-5 / ConnectX-6 Dx EN adapters with QSFP28 ports configured for 100GbE Ethernet. Not compatible with SFP28 ports, standard 40GbE-only ports without correct FEC settings, or InfiniBand EDR ports unless the device is in VPI Ethernet mode. Does not support 4x25G breakout — this is a direct 1:1 QSFP28-to-QSFP28 cable. Fixed 2m length, non-detachable.
Frequently Asked Questions (FAQ)
Q. What is the MCP1600-C002?
The MCP1600-C002 is a 2m passive copper DAC with QSFP28 connectors on both ends, rated for 100GbE Ethernet.
Q. Is this a splitter cable?
No. It is a straight 1-to-1 QSFP28-to-QSFP28 point-to-point assembly.
Q. Will T.E.S IT-SOLUTIONS confirm the configuration of MCP1600-C002 before shipping?
Yes. T.E.S IT-SOLUTIONS (tes-itsolutions.com) bench-tests each unit where test topology is available, before dispatch from EU stock.

Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every passive DAC for end-to-end signal integrity, connector latch retention, and physical condition before shipment. Visit tes-itsolutions.com for expert consultation on 100GbE fabric cabling, global shipping, and a 1–3 day handling window.