NVIDIA Mellanox MCP2M00-A02AE26N 25GbE SFP28 Passive Copper Cable, 2.5m: This is a 2.5-meter passive copper Direct Attach Cable (DAC) engineered for 25Gb/s Ethernet (25GbE) point-to-point connectivity. The cable uses bonded SFP28 connectors at both ends with 26 AWG twinax conductors. This is a fixed-length integrated assembly, not a transceiver with a detachable patch cord. This is a new (factory-sealed) unit.
Engineering Context
The MCP2M00-A02AE26N uses 26 AWG twinax copper conductors and operates at 25Gb/s per SFP28 lane (NRZ modulation). At 2.5m, the cable is well within the reliable passive range for 25GbE. Passive copper draws essentially zero power, making it the preferred choice over active solutions for short reach inside the rack. Latency is at the wire level (sub-nanosecond contribution from cabling).
Deployment & Use Cases
Top-of-Rack (ToR) switch to server NIC connections inside a single rack. Connecting ConnectX-4 Lx, ConnectX-5 Lx, or ConnectX-6 Lx adapters to NVIDIA Spectrum SN2010, SN2100, or SN2410 switches over short spans. 25GbE compute fabric uplinks. Storage server attachment in Ceph, ZFS, or NVMe-oF deployments.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP2M00-A02AE26N
Form Factor: SFP28 to SFP28 (Point-to-Point)
Data Rate: 25GbE (25Gb/s NRZ)
Cable Type: Passive Copper DAC
Length: 2.5m
Cable Gauge: 26 AWG
Protocol: 25GbE Ethernet
Power Draw: Passive (0W)
Condition: New — Factory-sealed, distributed by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum SN2010, SN2100, SN2410, and SN2700-series switches with SFP28 ports, and with ConnectX-4 Lx, ConnectX-5 Lx, and ConnectX-6 Lx adapters configured for 25GbE. Not compatible with QSFP28 or QSFP+ ports — the SFP28 form factor will not seat. Both ends must support 25G NRZ negotiation; ports locked to 10GbE-only mode may fail to link at 25G. This is a fixed 2.5m assembly and is not field-terminable. Cannot be used for InfiniBand HDR/EDR (different signalling).
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS verifies connector mate-up, lane continuity, and physical condition on every cable before shipment. We provide expert consultation on 25GbE/100GbE network cabling, global shipping with 1–3 day handling, and dedicated post-sales support. Visit https://www.tes-itsolutions.com for warranty terms and the full catalogue.