MCP1650-V003E30: NVIDIA Mellanox 400GbE QSFP-DD Direct Attach Copper Cable 3m
Also listed as: MCP1650-V003, MCP1650-V003E26
The NVIDIA MCP1650-V003E30 is a 3-meter passive QSFP-DD direct attach copper cable providing 400 Gigabit Ethernet connectivity within and between adjacent server racks.
Specifications
| Part number | MCP1650-V003E30 |
|---|---|
| Brand | NVIDIA |
| Type | Cables |
| Other numbers | MCP1650-V003, MCP1650-V003E26 |
| Status | current |
| Form factor | QSFP-DD |
| Speed | 400GbE |
| Connector | QSFP-DD to QSFP-DD |
| Cable type | Twinaxial passive copper |
| Max distance m | 3 |
About the MCP1650-V003E30
The NVIDIA MCP1650-V003E30 direct attach copper cable assembly provides high density 400 Gigabit Ethernet connectivity for accelerated AI data center racks and spine leaf networks. Containing sixteen high speed shielded twinaxial wire pairs supporting eight 50Gbps PAM4 channels, it offers an economical solution for short-reach inter-switch links.
Compatibility
Compatible with NVIDIA Spectrum-3 SN4600 and SN4700 switches with QSFP-DD interfaces. It links spine switches to top-of-rack leaf switches and bridges high performance compute nodes without the added power consumption and cost of optical transceiver modules.
How to identify a genuine unit
Constructed with a heavy gauge black twinaxial cable jacket and durable metal QSFP-DD connector housings. Both connector ends feature an integrated pull tab release latch and an adhesive identification label displaying NVIDIA part number MCP1650-V003E30 and serial number.
Buying used
Inspect the cable outer insulation for pinch points or sharp bends that could impair differential pair signal integrity. Verify that connector latching springs engage securely into switch cages and check that switch operating software establishes link state immediately without reporting bit errors.
Fits these models
- NVIDIA Spectrum-3 SN4410
- NVIDIA Spectrum-3 SN4600
- NVIDIA Spectrum-3 SN4600C
- NVIDIA Spectrum-3 SN4700
- NVIDIA Spectrum-4 SN5600
Check compatibility with NVIDIA
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that NVIDIA has tested with the NVIDIA MCP1650-V003E30.
- Compatibility NVIDIA Qualified System Catalog (certified GPU servers)
- Specifications NVIDIA Networking documentation (adapters, switches, cables)
- Support NVIDIA Enterprise Support
FAQ
What is the physical length of the MCP1650-V003E30 cable?
It is exactly 3 meters in total length.
Does this cable require electrical operating power?
No, it is a fully passive twinaxial copper cable drawing zero active electrical operating power.
Buying or selling MCP1650-V003E30?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- NVIDIA MCP1650-Vxxx 400GbE QSFP-DD Direct Attach Copper Cable Product Brief, checked 2026-10-27