NVIDIA Mellanox MCA7J60-N004 OSFP to 2x OSFP 800G NDR Active Copper Splitter Cable, 4m: This is a 4-meter active copper breakout cable for InfiniBand NDR fabrics. It splits a single 800Gb/s OSFP switch port into two independent 400Gb/s OSFP connections. This is a 1-to-2 OSFP-to-2xOSFP splitter, not a straight OSFP-to-OSFP cable, not a QSFP112 breakout, and not a passive DAC. This is a new unit.
Engineering Context
The MCA7J60-N004 carries the NVIDIA part number 980-9I948-00N004. It uses port-powered active copper redriver electronics on the OSFP head to deliver stable NDR-rate signaling across the 4-meter span. Both branch heads are OSFP and present 400Gb/s each, totaling 800Gb/s aggregate from the host port. The internal Twin-Port signaling architecture lets a single switch OSFP cage drive two downstream OSFP-equipped NICs or DPUs.
Deployment & Use Cases
Quantum-2 NDR switch port density expansion across racks where two adjacent compute nodes share one switch port. ConnectX-7 OSFP NIC fan-out for AI training pods. BlueField-3 OSFP DPU pairing in storage-target clusters. Spine-leaf NDR fabrics that need 2-to-1 oversubscription on switch uplinks.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCA7J60-N004
NVIDIA P/N: 980-9I948-00N004
Form Factor: OSFP to 2x OSFP (1-to-2 splitter)
Aggregate Data Rate: 800Gb/s
Branch Data Rate: 2x 400Gb/s NDR
Cable Type: Active Copper Cable (ACC)
Length: 4m
Protocol: InfiniBand NDR
Condition: New — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with NVIDIA Quantum-2 OSFP NDR switches (MQM9700, MQM9790) on the host side and OSFP NDR adapters such as ConnectX-7 OSFP and BlueField-3 OSFP on the branch side. Requires switch firmware configured for splitter operation. Not compatible with HDR/EDR-only OSFP cages or with QSFP112 ports without an additional adapter. The OSFP heads require active-cable power budget. Fixed 4m length; this is not a passive DAC, not a straight OSFP-to-OSFP cable, and not a 4-branch splitter.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests each MCA7J60-N004 for full-rate BER on both branches and inspects the redriver electronics before shipment. Browse https://www.tes-itsolutions.com for our complete Mellanox NDR cabling catalog. Standard order handling time is 1–3 business days.