NVIDIA Mellanox MCP1600-E003 EDR 100Gb/s QSFP28 to QSFP28 Passive Copper DAC, 3m: This is a 3m passive copper Direct Attach Cable (DAC) for EDR InfiniBand 100Gb/s (4x25G NRZ) connectivity over a fixed-length QSFP28 to QSFP28 assembly. This is a passive (un-amplified) copper assembly, not an active optical or active copper cable, and not a transceiver with a separate patch cord. Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MCP1600-E003 implements EDR InfiniBand at 100Gb/s using four 25Gb/s NRZ lanes per direction over twin-axial copper. Conductor gauge is 26AWG, providing the signal integrity required for 3m EDR runs. The Low Smoke Zero Halogen (LSZH) jacket ensures compliance with strict data center fire-safety codes. As a passive cable, the assembly draws no power from the host port and dissipates negligible heat. At 3m, this part is positioned for in-rack and adjacent-rack EDR connectivity where active optical cables are not required.
Deployment & Use Cases
Top-of-Rack to host EDR InfiniBand connectivity in HPC clusters. GPU-to-GPU fabric runs between adjacent compute nodes for distributed deep learning training. Storage fabric links between EDR-capable parallel filesystem servers (e.g., GPFS, Lustre over RDMA). Aggregation between EDR leaf switches at end-of-row when 3m suffices.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1600-E003
Form Factor: QSFP28 to QSFP28 (Point-to-Point)
Cable Type: Passive Copper DAC
Length: 3m
Data Rate: EDR InfiniBand 100Gb/s (4x25G NRZ)
Conductor: 26AWG copper
Jacket: LSZH (Low Smoke Zero Halogen)
Protocol: InfiniBand EDR
Power: 0 W (passive)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox EDR InfiniBand switches (Switch-IB SB7700/SB7790/SB7800 family) and ConnectX-4, ConnectX-5, ConnectX-6 host adapters configured for InfiniBand mode. Will also operate as a 100GbE QSFP28 cable on Spectrum switches and ConnectX-4/5/6 EN adapters when both endpoints are set to Ethernet. Not compatible with FDR (56Gb/s), QDR, or DDR-only ports. This is a passive copper cable; for runs significantly longer than 3m, an active optical cable (AOC) or transceiver pair is required. Fixed 3m length; this is not a breakout cable and does not split into 4xSFP28.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every cable for end-to-end link integrity, EEPROM data, and connector condition prior to dispatch. We provide expert consultation on InfiniBand/VPI fabric cabling, EU and global shipping, and a comprehensive warranty. Standard handling time is 1–3 business days.