The MCP2101-X00AB is an SFP+-to-SFP+ passive copper twinax Direct Attach Cable (DAC) for 10GbE Ethernet at 0.5-meter (50cm) reach. SFP+ connectors on both ends with a green pulltab for easy identification and removal. This cable IS an SFP+-to-SFP+ 10GbE passive copper DAC for ultra-short 0.5m reach. It is NOT compatible with QSFP ports, NOT an optical cable, and NOT rated for 25GbE. This is original NVIDIA Mellanox hardware sold by T.E.S IT-SOLUTIONS (tes-itsolutions.com) — not a compatible or third-party alternative. Condition: refurbished.
Engineering
The MCP2101-X00AB delivers 10Gb/s full-duplex over 0.5 meters of passive copper twinax. SFP+ connectors on both ends. Green pulltab enables visual identification and clean removal in dense 1U environments. No active components — zero cable power draw. Passive design provides sub-microsecond latency inherent to passive copper. The 0.5m length is the shortest standard passive copper DAC for SFP+-to-SFP+ connections, ideal for within-chassis or adjacent-device cabling where longer cables create management issues.
Deployment
Used for 10GbE server-to-switch or switch-to-switch connections where both SFP+ endpoints are in the same rack unit or immediately adjacent — such as top-of-rack switch to adjacent patch panel, server backplane connections, and test/lab environments requiring the shortest possible 10GbE SFP+ connection. Common in ultra-high-density server environments, blade chassis midplane connections, and JBOD or storage array connections where both endpoints are within 0.5 meters. The green pulltab differentiates this cable from standard black-tab variants in mixed-cable rack environments.
Specifications
MPN: MCP2101-X00AB
Data Rate: 10GbE (10Gb/s)
Connector Type: SFP+ (both ends)
Cable Type: Passive Copper Twinax DAC
Length: 0.5 meters (50cm)
Pulltab Color: Green
Protocol: Ethernet 10GbE
Condition: Refurbished
Compatibility
Compatible with all 10GbE SFP+ ports on switches and NICs including Mellanox SN2010, SN2100 (SFP28 ports operating at 10GbE), NVIDIA ConnectX-3, ConnectX-4 Lx, and third-party 10GbE SFP+ adapters. NOT compatible with QSFP ports — this cable has SFP+ connectors on both ends with no QSFP connector. NOT suitable for 25GbE (SFP28) connections. NOT an optical cable; no transceiver modules are required or compatible. For 10GbE connections requiring a QSFP switch port to an SFP+ server NIC, the MC2309130 or MCC1V30A QSFP-to-SFP+ hybrid cable series is required instead.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a European reseller specializing in original and refurbished NVIDIA Mellanox enterprise networking hardware, operating since 2011. Each MCP2101-X00AB is inspected and electrically validated before shipment. Global shipping with 1–3 business day handling.