NVIDIA Mellanox MFS1S50-H005V 200Gb/s to 2x100Gb/s QSFP56 Active Optical Splitter Cable, 5m: This is a 5-meter active optical cable (AOC) that splits a single 200Gb/s QSFP56 port into two 100Gb/s (HDR100) QSFP56 endpoints. The cable uses VCSEL optics for signal transmission and is a fixed-length integrated assembly. This is a refurbished unit.
Engineering Context
The MFS1S50-H005V doubles the usable port count of a Quantum HDR switch by splitting each 200G port into two HDR100 connections. At 5 meters, this optical solution overcomes passive copper DAC limitations while maintaining deterministic latency and complete EMI immunity. Each QSFP56 connector includes an integrated EEPROM for real-time diagnostic monitoring of temperature and optical power levels. OEM-branded equivalents include HPE P26659-B22 and Lenovo 01PG741.
Deployment & Use Cases
Connecting Quantum HDR switches to ConnectX-6 HDR100 adapters across adjacent racks. Doubling switch port density by splitting 200G QSFP56 ports into two HDR100 endpoints. AI/ML training clusters requiring inter-rack 200G/100G connectivity. HPC environments where passive copper reach is insufficient at 200Gb/s PAM4 signaling.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MFS1S50-H005V
- Form Factor: QSFP56 to 2x QSFP56 (Splitter)
- Data Rate: 200Gb/s to 2x 100Gb/s (HDR to 2x HDR100)
- Cable Type: Active Optical Cable (AOC) Splitter
- Length: 5m
- Protocol: InfiniBand HDR / 200GbE
- Power: <5W (source) / <3.5W (endpoints)
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
QSFP56 Ports Required: All three connectors are QSFP56. Not compatible with QSFP28, QSFP-DD, or OSFP ports. HDR/200GbE Only: Requires 50G PAM4 lane capability. Not compatible with legacy EDR (NRZ) or 40G QSFP+ ports. Fixed Length: 5m cable assembly, cannot be shortened or extended. Minimum Bend Radius: 60mm. Support the Y-junction weight to prevent internal fiber strain.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every AOC splitter for optical power output, lane integrity, and connector condition before shipment. We provide expert consultation on InfiniBand fabric cabling, global shipping, and comprehensive warranty.

