NVIDIA Mellanox MCP2M00-A01A 25GbE SFP28 Passive Copper Cable, 1.5m: This is a 1.5-meter passive direct-attach copper (DAC) cable for 25Gb/s Ethernet (25GbE) point-to-point links between SFP28 ports. It is a fixed-length factory-terminated assembly with no optics or active electronics. This is a refurbished unit.
Engineering Context
The MCP2M00-A01A occupies the most common in-rack length tier (1.5m) for ToR-to-server attachment in 25GbE compute racks. Twinaxial copper at this distance keeps insertion loss well within the IEEE 802.3by passive budget without requiring active equalization. Latency is sub-nanosecond per meter and the link draws no SerDes optics power. The integrated EEPROM is read by Spectrum and ConnectX hosts for cable identification.
Deployment & Use Cases
Top-of-Rack switch to server NIC links in 25GbE compute racks where the 0.5m and 1m tiers are too short. Storage uplinks to leaf switches inside a single rack. Hyperconverged infrastructure (HCI) intra-rack fabric. Bare-metal Kubernetes worker attachment at 25GbE. Service-provider 25GbE NFV node connectivity.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP2M00-A01A
Form Factor: SFP28 to SFP28
Data Rate: 25GbE (25Gb/s NRZ)
Cable Type: Passive Copper Direct Attach (DAC)
Length: 1.5m
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 at 25GbE, and with ConnectX-4 Lx, ConnectX-5, and ConnectX-6 Lx EN adapters. Requires SFP28 ports configured for 25GbE. Not a breakout cable. Not compatible with QSFP28 ports without an external breakout assembly. Reach is fixed at 1.5m; longer cross-rack runs typically need an active copper or AOC variant.
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.