NVIDIA Mellanox InfiniBand EDR 100Gb/s QSFP28 Passive Copper DAC 0.75m - MCP1600-E00B
This passive copper DAC cable is the NVIDIA Mellanox MCP1600-E00B, a QSFP28-to-QSFP28 direct attach cable rated at 100 Gb/s InfiniBand EDR using 4x25G NRZ signaling over a 0.75-meter reach with 30AWG twinax and LSZH jacket. This is a new, factory-sealed unit from T.E.S IT-SOLUTIONS. It is NOT an Ethernet cable (E suffix = InfiniBand EDR). It is NOT compatible with HDR or NDR speeds.
Engineering Context
The MCP1600-E00B uses NRZ signaling across 4 lanes at 25 Gb/s each for 100 Gb/s aggregate. The 0.75-meter ultra-short length provides maximum signal integrity and minimal cable mass for dense in-rack connections. The blue pulltab identifies it as an InfiniBand EDR cable in mixed-protocol environments.
Deployment and Use Cases
The MCP1600-E00B is deployed for ultra-short-distance InfiniBand EDR connections within the same rack or adjacent rack units. It connects Quantum EDR switches to ConnectX-4, ConnectX-5, or ConnectX-6 VPI adapters in HPC clusters and AI training environments where server and switch are in adjacent U positions.
Technical Specifications
- Model: MCP1600-E00B
- Cable Type: Passive Copper DAC
- Connector: QSFP28 to QSFP28
- Data Rate: 100 Gb/s (4x25G NRZ)
- Protocol: InfiniBand EDR
- Length: 0.75 meters
- Wire Gauge: 30AWG
- Jacket: LSZH
- Pull Tab: Blue
- Condition: New
Compatibility and Hard Constraints
The MCP1600-E00B requires QSFP28 ports configured for InfiniBand EDR. It is NOT compatible with QSFP56 (HDR) or OSFP (NDR). For 100GbE Ethernet, use the MCP1600-C series instead. Compatible with Quantum EDR switches and ConnectX-4/5/6 VPI adapters.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS provides this MCP1600-E00B as a new, factory-sealed unit. Global shipping with 1-3 business day handling time.

