Lenovo 03GX922 (MFA7U10-H010) 400Gb/s to 2x200Gb/s OSFP to 2xQSFP56 Active Optical Splitter Cable, 10m: This is a 10-meter active optical splitter cable designed for cross-generational InfiniBand fabric interconnects. It is a Lenovo FRU-branded version of the NVIDIA Mellanox MFA7U10-H010, with identical electrical and optical specifications. It features a single OSFP connector on the host end (400Gb/s via 8x 50G PAM4) which breaks out to two QSFP56 connectors (each at 200Gb/s HDR). This is a fixed-length integrated assembly. This is a refurbished unit.
Engineering Context
The 03GX922 is Lenovo's OEM-labeled equivalent of the NVIDIA MFA7U10-H010. It enables "Twin-Port HDR" connectivity for mixed-generation data centers where new Quantum-2 NDR switches must communicate with existing HDR compute nodes. While the OSFP connector is physically capable of 800G, this splitter utilizes the interface to drive two 200G HDR links (400G aggregate). At 10 meters, it is suited for intra-rack and adjacent-rack deployments.
Deployment & Use Cases
Connecting Lenovo ThinkSystem NDR switches or NVIDIA Quantum-2 switches (OSFP) to existing Quantum HDR switches or ConnectX-6 adapters (QSFP56). Splitting a single 400G switch port into two 200G links for downstream device density. AI cluster expansion integrating H100 (NDR) and A100 (HDR) compute nodes within the same InfiniBand fabric. Short-reach NDR-to-HDR bridging within the same rack row.
Technical Specifications
OEM: Lenovo (Licensed from NVIDIA/Mellanox)
Lenovo Part Number: 03GX922
NVIDIA/Mellanox Equivalent: MFA7U10-H010
Host Interface: 1x OSFP (Finned Top)
Target Interface: 2x QSFP56
Data Rate: 400Gb/s (8x50G PAM4) to 2x 200Gb/s HDR
Cable Type: Active Optical Splitter (AOC)
Length: 10m
Fiber: Multimode (MMF) 850nm
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
OSFP end: Compatible with Lenovo ThinkSystem NDR switches and NVIDIA Quantum-2 (MQM9700, MQM9790). Port must be configured for 2x200G split mode. QSFP56 ends: Compatible with ConnectX-6 VPI, ConnectX-6 Dx, BlueField-2 DPUs, and Quantum HDR switches (MQM8700 series). OSFP connector will not fit into QSFP-DD cages. QSFP56 PAM4 ends are not compatible with legacy QSFP28 NRZ ports. Fixed 10m length, cannot be shortened or extended.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS validates every MFA7U10 splitter for split-port negotiation and optical signal levels before shipment. We provide expert guidance on mixing Lenovo/NVIDIA NDR and HDR infrastructure, global shipping, and comprehensive warranty.