NVIDIA Mellanox MFS1S50-H015E 15m HDR Active Optical Splitter Cable, QSFP56 to 2x QSFP56, 200Gb/s to 2x 100Gb/s: This is a 15-meter active optical splitter cable (AOC) that breaks one 200Gb/s InfiniBand HDR QSFP56 port into two independent 100Gb/s HDR100 QSFP56 links. The assembly is factory-terminated with integrated VCSEL optics and a Low Smoke Zero Halogen (LSZH) jacket. NVIDIA P/N: 980-9I95E-00H015. This is a fixed-length integrated splitter, not two separate cables joined with a coupler. This is a refurbished unit.
Engineering Context
The MFS1S50-H015E is built around the InfiniBand HDR signaling layer (4 lanes × 50Gb/s PAM4 on the host side, split into 2x 2 lanes for the two HDR100 endpoints). It is the canonical interconnect for doubling switch port density: a single HDR switch port feeds two HDR100-capable endpoints, reducing per-port cost on aggregation switches such as the Quantum QM8700 / QM8790 series. Active optical assemblies eliminate the EMI sensitivity and bend-radius limits of passive copper at this data rate. BER target is rated below 1E-15. The LSZH jacket meets data-center fire-safety codes.
Deployment & Use Cases
Doubling endpoint density on HDR switch fabrics by feeding two HDR100 ConnectX-6 adapters from one HDR switch port. GPU compute clusters running NCCL collectives over HDR100 InfiniBand where the spine speaks HDR. Storage-tier breakouts where high-speed switches connect to slower storage controllers. Cross-rack runs where 15m provides reach beyond passive copper.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number (MPN): MFS1S50-H015E
NVIDIA P/N: 980-9I95E-00H015
Form Factor: QSFP56 to 2x QSFP56 (1:2 splitter AOC)
Data Rate: 200Gb/s aggregate, split into 2x 100Gb/s HDR100
Signaling: PAM4, 50Gb/s per lane on host side
Protocol: InfiniBand HDR / HDR100
Length: 15m
Jacket: LSZH (Low Smoke Zero Halogen)
BER: <1E-15
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum HDR switches (QM8700, QM8790) on the 200Gb/s host side and with HDR100-capable ConnectX-6 / ConnectX-6 VPI adapters on the two 100Gb/s endpoints. The switch port that originates the splitter must be configured for HDR (200Gb/s); both endpoints will operate as HDR100 InfiniBand only. Not validated for native 200GbE Ethernet on the splitter branches, the H50-series splitters are intended for InfiniBand HDR/HDR100 fabrics. Not compatible with EDR-only ConnectX-5 InfiniBand switches without HDR licensing. Fixed 15m length; the split point is integral to the assembly and cannot be relocated.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every active optical cable for optical power, lane integrity, and connector condition before shipment. Inventory ships from EU and Israel with 1–3 day handling, global delivery, and direct technical support on InfiniBand and Ethernet fabric design. Visit T.E.S IT-SOLUTIONS for the full catalog of NVIDIA Mellanox networking hardware.