Lenovo 4XC7A99370 Thinksystem SC750 V4 NVIDIA CONNECTX-7 NDR200/HDR/200GBE QSFP112 2-PORT PCIE GEN

Lenovo 4XC7A99370 ThinkSystem SC750 V4 ConnectX-7 NDR200/HDR 200GbE 2-Port QSFP112 PCIe Adapter

Overview

The Lenovo 4XC7A99370 is a 2-port, 200GbE QSFP112 network adapter built on the NVIDIA ConnectX-7 architecture and validated for the ThinkSystem SC750 V4 platform. It supports NDR200 InfiniBand and HDR signaling alongside 200GbE Ethernet — giving HPC and AI infrastructure teams a single adapter that bridges high-speed fabric interconnects and Ethernet switching environments without sourcing separate cards for each protocol. The PCIe host interface keeps installation straightforward on compatible SC750 V4 nodes, and the QSFP112 cage supports the high-density optical and DAC cabling common in modern scale-out racks. Manufactured in Mexico (country of origin: MX), the 4XC7A99370 ships factory-new, sourced through the US distribution channel.

Key Features

• NDR200 / HDR InfiniBand + 200GbE Dual Protocol: A single adapter handles both InfiniBand fabric (NDR200 at 200 Gb/s per port, backward-compatible with HDR at 200 Gb/s) and 200GbE Ethernet — so the same card works in a pure IB cluster today and can participate in an Ethernet-converged fabric tomorrow without a hardware swap.
• 2-Port QSFP112 Design: Two independent 200GbE/NDR200 ports on a single PCIe card doubles bandwidth per slot compared to a single-port adapter — critical in SC750 V4 nodes where PCIe slot count is finite and every slot matters for GPU or storage expansion.
• PCIe Host Interface: The PCIe interface integrates directly into the SC750 V4 system bus, keeping latency deterministic and avoiding the overhead of external switch hops — important for MPI workloads and tightly coupled parallel jobs that are sensitive to inter-node communication timing.
• QSFP112 Cage Compatibility: QSFP112 supports 200G-DR1, 200G-SR4, and high-density DAC/AOC cabling — giving cabling teams flexibility between short-reach copper (DAC) for same-rack connections and optical for cross-rack or cross-row distances, without changing the adapter.
• ThinkSystem SC750 V4 Platform Validation: Platform-validated by Lenovo for the SC750 V4 means the adapter has passed compatibility, driver, and firmware qualification on that specific chassis — reducing the risk of PCIe link negotiation issues, driver conflicts, or unsupported firmware states that can surface with generic third-party NICs.
• 10 lb Shipping Weight: At 10 lb (including packaging), the adapter ships in standard commercial packaging suitable for depot sparing — integrators building rack-level spare kits can stock and ship this card without freight complications.

Integration and Compatibility

The 4XC7A99370 is qualified for the Lenovo ThinkSystem SC750 V4 server platform. The NVIDIA ConnectX-7 silicon provides broad RDMA over Converged Ethernet (RoCEv2) support in Ethernet mode and standard InfiniBand verbs in IB mode, making it compatible with common HPC middleware stacks. For Ethernet deployments, the 200GbE ports integrate with switches supporting 200G QSFP112/QSFP-DD ports. For InfiniBand deployments, the NDR200/HDR signaling requires a compatible IB switch fabric. Consult the Lenovo ThinkSystem catalog for the full SC750 V4 option compatibility matrix, and the network adapter category for alternative port counts and speeds. For infrastructure pairing, review HPC infrastructure components and compatible high-speed network switches that support 200G QSFP112 uplinks. Buyers planning multi-rail HPC fabrics should also consult a InfiniBand fabric planning guide to size switch port density against node count before ordering adapters.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XC7A99370 validated for?

A: The 4XC7A99370 is validated for the Lenovo ThinkSystem SC750 V4 platform, as indicated by the product designation. Always confirm slot and firmware compatibility against the SC750 V4 option compatibility matrix before deployment.

Q: Does the 4XC7A99370 support both InfiniBand and Ethernet?

A: Yes. Based on the product name, the adapter supports NDR200 and HDR InfiniBand signaling as well as 200GbE Ethernet through its QSFP112 ports, consistent with NVIDIA ConnectX-7 dual-protocol capabilities.

Q: What cable type does the QSFP112 port require?

A: QSFP112 ports are compatible with 200G DAC (Direct Attach Copper) cables for short reaches, and 200G AOC or active optical modules for longer cross-rack distances. Verify cable reach and power budget with your cabling vendor.

Q: What is the country of origin for the 4XC7A99370?

A: The 4XC7A99370 is manufactured in Mexico (MX), per verified distribution data.

Q: Is the 4XC7A99370 a TAA-compliant product?

A: Country of origin is confirmed as Mexico (MX). TAA compliance status is not confirmed in the available evidence — verify directly with Lenovo or your procurement team before submitting on a TAA-restricted contract.

James Everett

The 4XC7A99370 is Lenovo's platform-validated NVIDIA ConnectX-7 option for the ThinkSystem SC750 V4, delivering dual 200GbE / NDR200 ports via QSFP112 on a single PCIe card — the combination that matters in tightly coupled HPC clusters where every inter-node hop has measurable latency impact on MPI job completion times.

Technical Highlights:

• Dual-Protocol NDR200/HDR + 200GbE: ConnectX-7 handles both IB fabric and Ethernet on the same silicon — deploy into an IB cluster now, migrate to RoCEv2 Ethernet later without pulling adapters.
• 2-Port QSFP112: Two independent 200G ports per card conserves PCIe slot real estate in the SC750 V4, where slots compete with GPU and NVMe expansion — a single card provides 400G aggregate throughput capacity per node.
• SC750 V4 Platform Validation: Lenovo platform qualification means this card has been tested at the firmware and driver level for the SC750 V4 chassis — reduces integration risk compared to sourcing an unvalidated ConnectX-7 retail card and hoping for full feature support.

Deployment Considerations:

• QSFP112 cabling infrastructure must be in place at the switch side as well — confirm your top-of-rack or spine switches support QSFP112 or QSFP-DD 200G ports before ordering adapters in quantity.
• Available spec data is limited to distribution-feed attributes; confirm PCIe generation (Gen 4 vs Gen 5) and slot physical length against SC750 V4 riser configuration before installation to avoid a mismatch that requires a riser change.

This adapter is the right call for ThinkSystem SC750 V4 nodes being deployed into NDR InfiniBand HPC clusters or 200GbE AI training fabrics where dual-protocol flexibility is worth the per-card cost premium over single-protocol options.