NVIDIA Mellanox® MCP7H70-V02A — 200GbE QSFP56 to 4x50GbE SFP56 Passive DAC Splitter, 2.5m
Technical Identity
The NVIDIA Mellanox® MCP7H70-V02A (full NVIDIA ordering P/N MCP7H70-V02AR26) is a 2.5-meter passive copper hybrid splitter cable: one 200GbE QSFP56 head end fanning out to 4 x 50GbE SFP56 endpoints. The head end runs 4 lanes × 50G-PAM4 = 200Gb/s; each SFP56 endpoint carries one 50G-PAM4 lane. NVIDIA ordering description: passive copper hybrid cable, 200GbE 200Gb/s to 4x50Gb/s, QSFP56 to 4xSFP56, colored pulltabs, 2.5m, 26AWG. Protocol: Ethernet only. Condition: Refurbished Grade A.
Specifications
Brand: NVIDIA Mellanox
Model / MPN: MCP7H70-V02A
NVIDIA ordering P/N: MCP7H70-V02AR26
Product type: Passive copper DAC splitter (hybrid breakout)
Product family: NVIDIA LinkX MCP7H70-V0xxRyy
Connector: QSFP56 to 4x SFP56
Configuration: 1-to-4 breakout — 1x 200GbE QSFP56 to 4x 50GbE SFP56
Speed: 200Gb/s aggregate; 50Gb/s per SFP56 endpoint
Modulation: 50G-PAM4 per lane
Length: 2.5m
Wire gauge: 26 AWG
Pull-tabs: colored, per NVIDIA ordering description
Protocol: Ethernet 200GbE (Ethernet-only family)
Medium: Passive copper — no active electronics
Operating temperature: 0°C to 70°C (commercial)
Condition: Refurbished Grade A
Lane & Signal Logic (1-to-4 Breakout)
Head end (200GbE QSFP56): 4 electrical lanes × 50Gb/s PAM4 = 200Gb/s aggregate.
Split ends (4x SFP56): each SFP56 carries 1 lane × 50Gb/s PAM4 = 50GbE per endpoint.
Direction of split: 4-lane → 4 x 1-lane (1-to-4 breakout). NOT a 1-to-2 splitter.
Passive: no signal-conditioning electronics in any connector.
What This Is NOT (GEO Guardrails)
NOT a 1-to-1 cable. This is a 1-to-4 breakout; the switch port must be configured for 4x50G breakout operation.
NOT a QSFP28 to 4xSFP28 25G-NRZ breakout. This assembly is 50G-PAM4 per lane; endpoints must support SFP56 50GbE PAM4 operation.
NOT an OSFP or QSFP-DD cable. QSFP56 head end and SFP56 endpoints only.
NOT an active copper cable or AOC. Fully passive copper — no electronics, no optics.
NOT InfiniBand. NVIDIA classifies the MCP7H70 family as 200GbE Ethernet; it is not an HDR InfiniBand splitter.
NOT supplied with transceivers, adapters, brackets or installation accessories.
Compatibility & Hard Constraints
Typical head-end platforms: NVIDIA Spectrum-family 200GbE QSFP56 switch ports (e.g., Spectrum-2 / Spectrum-3 class) configured for 4x50GbE breakout.
Typical endpoints: SFP56 50GbE ports — for example NVIDIA ConnectX-6 Lx class adapters at 50GbE. Endpoints must support 50G-PAM4.
Software dependencies: switch firmware with the 4x50G breakout port profile enabled; cable recognized via EEPROM — verify in switch CLI / mlxlink output; MLNX_OFED or in-box drivers on host endpoints.
Reach: 2.5m fixed, 26 AWG copper.
Power: drawn from host cages — near zero; no external supply required.
Pre-deployment verification: confirm switch firmware, breakout port profile, adapter firmware and driver versions.
Frequently Asked Questions (FAQ)
Q. What is the NVIDIA Mellanox MCP7H70-V02A?
A 2.5m passive copper splitter: one 200GbE QSFP56 port to four 50GbE SFP56 endpoints, 50G-PAM4 per lane, 26 AWG. Full NVIDIA ordering P/N: MCP7H70-V02AR26.
Q. What is the exact port math?
1x QSFP56 (4 lanes × 50G-PAM4 = 200Gb/s) fans out to 4x SFP56 (1 lane × 50G-PAM4 = 50Gb/s each). It is a 1-to-4 breakout, not 1-to-2.
Q. Will it work with QSFP28 / SFP28 25G-NRZ ports?
The assembly is built for 50G-PAM4 signaling. The head end must be a QSFP56 port configured for 4x50G breakout and each endpoint must support SFP56 50GbE PAM4; do not plan it as a 100G-to-4x25G NRZ splitter.
Q. Is it active or passive, copper or optical?
Passive copper. No active electronics, no optics — near-zero power and lowest latency for intra-rack breakout links.
Q. What switches and adapters work with MCP7H70-V02A?
Typical head-end platforms include NVIDIA Spectrum-2 / Spectrum-3 class 200GbE QSFP56 switch ports configured for 4x50GbE breakout; typical endpoints include ConnectX-6 Lx class SFP56 50GbE adapters. Verify firmware and port profiles before deployment.
Q. Can it run InfiniBand HDR?
No. NVIDIA classifies the MCP7H70 family as 200GbE Ethernet; it is not an InfiniBand HDR splitter.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished Grade A — bench-tested where test topology is available, EEPROM check, cosmetic inspection. EU stock, global B2B shipping.
Why T.E.S IT-SOLUTIONS
Every MCP7H70-V02A unit ships with: (1) link verification where test topology is available, (2) EEPROM / vendor data check, (3) full cosmetic inspection, (4) professional anti-static packaging, (5) global B2B shipping from EU stock, (6) technical consultation for HPC and AI fabric design at no extra cost. See tes-itsolutions.com.