NVIDIA Mellanox MCP2M00-A002 25GbE SFP28 Passive Copper Cable, 2m: This is a 2-meter passive direct-attach copper (DAC) cable engineered for 25Gb/s Ethernet (25GbE) point-to-point interconnects between SFP28 ports. The cable is a fixed-length integrated assembly with permanently attached SFP28 connectors. This is a passive copper cable — it contains no optics, active electronics, or DSPs, and requires no external power. This is a refurbished unit.
Engineering Context
The MCP2M00-A002 implements 25GbE NRZ signaling over twinaxial copper conductors. At 2m, it is sized for within-rack and short adjacent-rack runs where optics would add unnecessary cost and power. Latency is sub-nanosecond per meter and the link draws no SerDes optics power. The connectors carry the integrated EEPROM expected by NVIDIA Spectrum switches and ConnectX adapters for cable identification. Compliant with IEEE 802.3by 25GbE.
Deployment & Use Cases
Top-of-Rack switch to server NIC connections in 25GbE compute clusters. Storage server uplinks to leaf switches over short distances. Hyperconverged infrastructure (HCI) intra-rack fabric. 25GbE Kubernetes worker node attachment. Edge sites where every in-rack run fits within 2m.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP2M00-A002
Form Factor: SFP28 to SFP28
Data Rate: 25GbE (25Gb/s NRZ)
Cable Type: Passive Copper Direct Attach (DAC)
Length: 2m
Power: Passive (no external power required)
Standard: IEEE 802.3by 25GbE
Protocol: 25GbE Ethernet
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum SN2010, SN2100, SN2410, and SN2700 switches operating SFP28 ports at 25GbE, and with ConnectX-4 Lx, ConnectX-5, and ConnectX-6 Lx EN adapters. Requires SFP28 ports configured for 25GbE. Not compatible with QSFP28 ports without an external breakout assembly — this cable is direct SFP28-to-SFP28 only. Not a breakout cable. Length is fixed at 2m; runs longer than ~5m typically require an Active Copper Cable or AOC.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every DAC for continuity, EEPROM identity, and connector condition before shipment. We provide expert consultation on 25GbE Ethernet fabric cabling, global shipping, and comprehensive warranty. Standard handling time is 1–3 business days.