NVIDIA Mellanox MC3309124-005 SFP+ 10GbE Passive Copper Cable, 5m — Lot of 5: This is a lot of five 5-meter passive copper direct-attach cables (DAC) with SFP+ connectors on both ends, rated for 10GbE Ethernet point-to-point connectivity. This is a fixed-length passive copper assembly, not an active or optical cable. Each unit is a refurbished cable.
Engineering Context
The MC3309124-005 is a 10GBASE-CR (SFP+ direct-attach) cable engineered for short-reach 10G Ethernet links. At 5m, it is at the upper end of typical passive SFP+ DAC reach and uses a heavier gauge conductor relative to 1–3m variants. Passive DACs draw 0 W and introduce no transceiver retiming latency. Connectors are factory-terminated and not field-replaceable. EMI immunity is built in via twinaxial shielding.
Deployment & Use Cases
Top-of-Rack switch to server NIC at 10GbE in adjacent racks. Storage array to switch interconnect for iSCSI or NFS-over-10G. Aggregation between two SFP+ switches across a row when fiber is unnecessary. Replacement DAC for legacy 10G Ethernet fabrics where passive copper at 5m is acceptable.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MC3309124-005
- Form Factor: SFP+ to SFP+
- Cable Type: Passive Copper DAC (10GBASE-CR)
- Data Rate: 10GbE Ethernet
- Length: 5 m
- Protocol: Ethernet only
- Lot Quantity: 5 units per listing
- Power Consumption: 0 W (passive)
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with Mellanox SFP+ ports on ConnectX-3 EN, ConnectX-3 Pro EN, ConnectX-4 Lx, and SX1000-series switches operating in 10GbE mode. Designed for 10G Ethernet only — does not support 25GbE (SFP28) or any InfiniBand rates. Not compatible with QSFP+ ports without an external adapter. Third-party SFP+ switch ports may require coding tolerance configuration. Fixed 5m length.
Why Choose T.E.S IT-SOLUTIONS
Each cable in the Lot of 5 is tested for link bring-up at 10GbE before shipment. T.E.S IT-SOLUTIONS provides 10G Ethernet fabric consultation, global shipping, and warranty. Handling time 1–3 days.

