Lenovo 03GX912 (MCP7Y40-N003) InfiniBand NDR200 OSFP to 4xQSFP112 Passive DAC Fanout Cable, 3m: This is a 3-meter passive copper breakout cable that splits a single 800Gb/s OSFP switch port into four individual 200Gb/s QSFP112 compute endpoints. It is a Lenovo-branded version of the NVIDIA Mellanox MCP7Y40-N003, with identical electrical specifications. This is a fixed-length integrated assembly. This unit is New.
Engineering Context
The 03GX912 is Lenovo's OEM-labeled equivalent of the NVIDIA MCP7Y40-N003. At 3 meters, this is near the maximum practical distance for passive copper at NDR200 speeds. The cable splits the 8x 100G PAM4 lanes from the OSFP port into four groups of 2x 100G PAM4 lanes for each QSFP112 endpoint. As a passive device, it consumes zero power and provides deterministic latency with complete EMI immunity via shielded twinaxial construction.
Deployment & Use Cases
Connecting Lenovo ThinkSystem servers with ConnectX-7 QSFP112 adapters to Quantum-2 NDR switches. AI model training clusters (LLM/GenAI) using InfiniBand NDR protocols. Short-reach intra-rack fabric aggregation where maximum passive copper reach is required. High-frequency trading environments requiring nanosecond-level precision.
Technical Specifications
OEM: Lenovo (Licensed from NVIDIA/Mellanox)
Lenovo Part Number: 03GX912
NVIDIA/Mellanox Equivalent: MCP7Y40-N003
Switch Connector: 1x OSFP
Adapter Connectors: 4x QSFP112
Data Rate: 800Gb/s to 4x 200Gb/s NDR200 (8x 100G PAM4)
Cable Type: Passive DAC (0W)
Length: 3m
Protocol: InfiniBand NDR
Condition: New
Compatibility & Hard Constraints
Switch side: Compatible with Lenovo ThinkSystem NDR switches and NVIDIA Quantum-2 (MQM9700/MQM9790). Adapter side: Requires ConnectX-7 adapters with QSFP112 ports and 100G PAM4 signaling. Not compatible with ConnectX-6 QSFP56 adapters (50G PAM4). Not compatible with legacy QSFP28 ports lacking 112G SerDes support. Not compatible with OSFP ports configured strictly for 800G non-split operation. Fixed 3m length. Minimum bend radius 35mm.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS validates every NDR200 DAC fanout for signal integrity and connector condition before shipment. We provide expert consultation on Lenovo and NVIDIA InfiniBand architecture, global shipping, and comprehensive warranty.