NVIDIA Mellanox MC3309124-004 SFP+ 10GbE Passive Copper Cable, 4m: This is a 4-meter passive copper direct-attach cable (DAC) with two SFP+ connectors for 10 Gigabit Ethernet point-to-point links. The cable is a fixed-length integrated assembly with EEPROM-encoded ends; it is not a transceiver pair with a removable patch cord. This listing is a lot of 4 refurbished units, tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MC3309124-004 is a 10GBASE-CR passive copper assembly designed for short, in-rack and adjacent-rack 10GbE links. As a passive cable, it consumes essentially no port power and adds negligible latency relative to optics. At 4 m it sits comfortably within the typical 7 m passive reach for 10GBASE-CR. The SFP+ ends carry programmed EEPROM data so host switches and adapters can identify the cable type, length, and Mellanox part number. Because the cable is passive, no FEC overhead is added on 10GbE-capable hosts.
Deployment & Use Cases
Top-of-Rack switch to server NIC connections at 10GbE. Inter-switch links between adjacent racks within passive copper reach. iSCSI and NFS storage fabrics. Lab and test bench setups for ConnectX-2/-3 EN adapters. Cost-effective replacement for SFP+ SR optics on short runs where multimode fiber is not justified.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MC3309124-004
Form Factor: SFP+ to SFP+ (Point-to-Point)
Data Rate: 10GbE (10 Gb/s)
Cable Type: Passive Copper DAC
Length: 4 m
Protocol: 10 Gigabit Ethernet (10GBASE-CR)
Conductor: Copper, twin-axial
Lot Quantity: 4 units
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox SwitchX/SwitchX-2 and Spectrum series switches with SFP+ ports configured for 10GbE, and ConnectX-2 EN, ConnectX-3 EN, ConnectX-4 Lx EN adapters. Fixed 4 m length — cannot be shortened or extended. Passive copper only; the cable does not include retimers or signal conditioners. Not compatible with 1GbE-only SFP slots for 10GbE operation. Not compatible with QSFP+ ports without an external breakout. Third-party switch interoperability depends on the host accepting Mellanox-coded SFP+ DACs.
Why Choose T.E.S IT-SOLUTIONS
Each unit is link-tested at 10GbE before shipment. T.E.S IT-SOLUTIONS ships from stock with 1–3 day handling and provides expert consultation on Mellanox 10GbE fabric cabling.