The MC3309124-006 is an SFP+-to-SFP+ passive copper twinax Direct Attach Cable (DAC) for 10GbE Ethernet over 6 meters. SFP+ connectors on both ends — this cable connects two SFP+ ports directly, with NO QSFP connector. 24 AWG copper conductors — the heavier gauge is required to maintain 10GbE signal integrity at 6-meter passive copper reach. This cable IS an SFP+-to-SFP+ 10GbE twinax passive copper DAC for 6-meter 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 MC3309124-006 delivers 10Gb/s full-duplex over 6 meters of 24 AWG passive copper twinax. SFP+ connectors on both ends. No active components — zero cable power draw. 24 AWG is a heavier copper gauge than the 28 AWG used in shorter passive copper cables, required to reduce resistance and maintain the signal integrity needed at 6-meter passive copper reach for 10GbE (10GBASE-CR). 6 meters is at the upper limit of passive copper capability for SFP+ twinax at 10GbE; beyond this distance, active copper or optical cables are required.
Deployment
Used for 10GbE server-to-switch or switch-to-switch connections where both endpoints have SFP+ ports and are separated by 4–6 meters — common in rack-to-adjacent-rack cabling, longer top-of-rack runs, and storage fabric connections where servers and storage arrays are distributed across a full cabinet or neighbouring cabinets. Common in iSCSI SAN environments, 10GbE NAS connections, and VMware ESXi server clusters where the 6m reach fills the gap between short passive DAC cables (1-3m) and optical solutions.
Specifications
MPN: MC3309124-006
Data Rate: 10GbE (10Gb/s)
Connector Type: SFP+ (both ends)
Cable Type: Passive Copper Twinax DAC
Length: 6 meters
Cable Gauge: 24 AWG
Standard: 10GBASE-CR
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), and NVIDIA ConnectX-3, ConnectX-4 Lx adapters. NOT compatible with QSFP ports — this cable has SFP+ connectors on both ends, NOT a QSFP connector. NOT suitable for 25GbE (SFP28) connections. NOT a breakout cable. 6 meters is the maximum rated passive copper reach for this cable. For longer SFP+ twinax connections, active copper (ACC) or optical SFP+ cables are required. Note: the MC2309130 series (QSFP-to-SFP+) and MC3309124 series (SFP+-to-SFP+) are different cable types with different connector configurations.
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 MC3309124-006 cable is inspected and electrically validated before shipment. Global shipping with 1–3 business day handling. Technical consultation available for SFP+ twinax DAC selection.