NVIDIA Mellanox MCP1600-E004 QSFP28 Passive Copper Cable, 4m, EDR 100Gb/s: This is a 4-meter passive copper Direct Attach Cable (DAC) with QSFP28-to-QSFP28 connectors. The cable is rated for InfiniBand EDR (100Gb/s) and is built with 26AWG conductors. This is a passive cable with no signal conditioning electronics; it is not an active copper cable, not an active optical cable (AOC), and not a transceiver-with-detachable-patch-cord. This is a refurbished unit.
Engineering Context
The MCP1600-E004 carries four lanes of 25Gb/s NRZ signaling (4x25Gb/s = 100Gb/s aggregate) for EDR InfiniBand operation. As a passive cable, it draws no power from the host and contributes negligible added latency. The 26AWG copper construction balances reach and bend radius for the 4-meter length, suitable for top-of-rack switch to host adapter runs within a single cabinet. The QSFP28 form factor provides the higher per-lane signaling required for the EDR generation, distinct from legacy QSFP+ FDR cables.
Deployment & Use Cases
Connecting Mellanox SB7700/SB7800 series EDR switches to ConnectX-4 / ConnectX-5 host adapters. HPC cluster compute-to-storage links at 100Gb/s InfiniBand EDR. Top-of-rack to mid-cabinet runs where copper passive is preferred over AOC for cost. AI/ML training cluster fabrics built on the EDR generation.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MCP1600-E004
- Form Factor: QSFP28 to QSFP28 (Point-to-Point)
- Cable Type: Passive Copper DAC
- Length: 4 meters
- InfiniBand Rate: EDR (100Gb/s, 4x25G NRZ)
- Conductor Gauge: 26AWG
- Jacket Color: Black
- Power Draw: 0 W (passive)
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with Mellanox QSFP28 ports on SB7700, SB7800, and SN2000/SN3000-series switches and ConnectX-4 / ConnectX-5 / ConnectX-6 (in QSFP28 mode) adapters running EDR. The Mellanox -E suffix indicates the InfiniBand EDR variant; for 100GbE Ethernet use the MCP1600-C-series part. Not rated for HDR (200Gb/s) — link will negotiate down or fail link training on HDR-only ports. Not a breakout cable; QSFP28-to-QSFP28 only. Fixed 4-meter length.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every cable for continuity, signal integrity, and connector condition before shipment. Visit tes-itsolutions.com for the full Mellanox EDR cabling inventory. We provide expert consultation on InfiniBand fabric cabling, global shipping, and 1–3 day handling time.
Frequently Asked Questions
What infiniband rate does the MCP1600-E004 have?
The MCP1600-E004 infiniband rate is EDR (100Gb/s, 4x25G NRZ), as listed in the specifications for MCP1600-E004.
What is the MCP1600-E004 NOT compatible with?
it is not an active copper cable, not an active optical cable (AOC), and not a transceiver-with-detachable-patch-cord. Confirm fitment against your platform before ordering MCP1600-E004.
What condition is the MCP1600-E004 supplied in, and who sells it?
The MCP1600-E004 is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/new-lot-of-3-mellanox-mcp1600-e004-qsfp28-4m-ib-edr-up-to-100gb-s-support.