Lenovo 03LE615 (MFA7U10-H020) 400Gb/s to 2x200Gb/s OSFP to 2xQSFP56 Active Optical Splitter Cable, 20m: This is a 20-meter active optical splitter cable designed for cross-generational InfiniBand fabric interconnects. It is a Lenovo FRU-branded version of the NVIDIA Mellanox MFA7U10-H020, 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 03LE615 is Lenovo's OEM-labeled equivalent of the NVIDIA MFA7U10-H020. It enables "Twin-Port HDR" connectivity for mixed-generation data centers where new Quantum-2 NDR infrastructure must communicate with existing HDR workloads without a full fabric replacement. While the OSFP connector is physically capable of 800G, this splitter utilizes the interface to drive two 200G HDR links (400G aggregate). At 20 meters, it supports inter-rack and end-of-row topologies.
Deployment & Use Cases
Connecting Lenovo ThinkSystem NDR switches or NVIDIA Quantum-2 switches (OSFP ports) to existing Quantum HDR switches or ConnectX-6 adapters (QSFP56 ports). Inter-rack connectivity in HPC and AI/ML clusters during NDR-to-HDR migration. Linking high-density 400G switch ports to distributed 200G NVMe-oF storage targets. Extending the life of HDR infrastructure while establishing an NDR core backbone.
Technical Specifications
OEM: Lenovo (Licensed from NVIDIA/Mellanox)
Lenovo Part Number: 03LE615
NVIDIA/Mellanox Equivalent: MFA7U10-H020
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: 20m
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. Switch port must explicitly support breakout mode. Fixed 20m 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.