NVIDIA Mellanox MCP2M00-A005E26L 25GbE SFP28 Passive Direct-Attach Copper Cable, 5m, 26 AWG: This is a 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 integrated assembly with bonded SFP28 connectors on both ends, not a transceiver-and-patch-cable pair. The cable uses 26 AWG twin-axial copper conductors and requires no port power. This unit is brand new.
Engineering Context
The MCP2M00-A005E26L delivers low-latency, zero-power 25GbE connectivity in a fully shielded copper assembly. 26 AWG conductors at 5m sit at the upper end of the MCP2M00 passive DAC family; longer reaches in this product line generally require active copper or AOC alternatives. Signal integrity at 25 Gb/s NRZ depends on host SFP28 port FEC settings; both ends must agree on FEC mode. Insertion loss budget for the assembly is fixed at the factory and cannot be re-terminated in the field.
Deployment & Use Cases
Cross-row 25GbE connectivity between adjacent rack rows. SFP28 spine-leaf interconnects where a passive copper run is preferred for power and latency. Storage uplinks bridging two cabinets in the same data hall.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP2M00-A005E26L
Form Factor: SFP28 to SFP28 (Point-to-Point)
Data Rate: 25Gb/s NRZ
Protocol: 25GbE Ethernet
Cable Type: Passive Direct-Attach Copper (DAC)
Length: 5m
Conductor Gauge: 26 AWG
Power Draw: 0 W (passive)
Condition: New — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum series switches (SN2000, SN3000) and ConnectX-4 Lx, ConnectX-5, ConnectX-6 Dx EN adapters configured for 25GbE on SFP28 ports. Backwards compatible with 10GbE SFP+ ports. Not compatible with QSFP28 ports without an SFP28-to-QSFP28 breakout adapter. Not a breakout cable; this is a 1:1 SFP28 link only. Length is fixed at 5m and cannot be field-modified.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every passive DAC for connector seating, conductor continuity, and shielding integrity before shipment. We provide expert consultation on 25GbE Ethernet fabric cabling, global B2B shipping, and 1-3 day handling.