NVIDIA Mellanox MFS1S50-H020V 200Gb/s to 2x100Gb/s QSFP56 Active Optical Splitter Cable, 20m: This is a 20-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 — not a transceiver with detachable patch cords. This is a refurbished unit.
Engineering Context
At 20 meters, passive copper is not viable for 200Gb/s signaling. The MFS1S50-H020V provides HDR100 bandwidth with optical reach at lower power and cost than pluggable transceiver + fiber combinations. The AOC delivers deterministic latency and complete EMI immunity. The 20m length is optimized for end-of-row or middle-of-row switch architectures where compute racks are within the same data hall but beyond passive copper reach. The source end consumes up to 5W and each endpoint up to 3.5W.
Deployment & Use Cases
End-of-row or middle-of-row InfiniBand HDR fabric connectivity. Connecting Quantum HDR switches to compute nodes within the same data hall (up to 20m). Doubling switch port density by splitting 200G QSFP56 ports into two HDR100 endpoints. AI/ML training clusters requiring inter-rack 200G/100G connectivity beyond copper reach.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MFS1S50-H020V
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: 20m
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 (1 source + 2 endpoints) are QSFP56. Not compatible with QSFP28, QSFP-DD, or OSFP ports. HDR/200GbE Only: Requires ports with 50G PAM4 lane capability. Not compatible with legacy EDR (NRZ) or 40G QSFP+ ports. Fixed Length: This is a 20m fixed cable assembly. It cannot be shortened or extended. Minimum Bend Radius: 60mm. Do not tightly coil or pinch with zip-ties.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every AOC splitter cable for optical power output, lane integrity, and connector condition on both ends before shipment. We provide expert consultation on InfiniBand fabric cabling design, global shipping, and comprehensive warranty.