4XC7A08248: lenovo ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-Port PCIe Ethernet Adapter
Also listed as: 4XC7A08248-01, 01PE834, SP47A49286, B86V, MCX623106AN-CDAT, ConnectX-6 Dx 100GbE
Dual-port 100GbE QSFP56 PCIe 4.0 network adapter powered by NVIDIA ConnectX-6 Dx for high-speed clustering and AI fabrics in ThinkSystem servers.
Specifications
| Part number | 4XC7A08248 |
|---|---|
| Brand | lenovo |
| Type | Network adapters |
| Other numbers | 4XC7A08248-01, 01PE834, SP47A49286, B86V, MCX623106AN-CDAT, ConnectX-6 Dx 100GbE |
| Interface | PCIe 4.0 x16 |
| Ports | 2 |
| Data transfer rate | 100Gb/s per port |
| Connector | QSFP56 |
| Form factor | Low Profile PCIe |
About the 4XC7A08248
The Lenovo 4XC7A08248 is an ultra-high-performance dual-port 100GbE PCIe 4.0 network adapter powered by the NVIDIA Mellanox ConnectX-6 Dx controller. Designed for AI training clusters, NVMe-over-Fabrics (NVMe-oF) high-speed storage, and telco cloud architectures, it delivers up to 100Gb/s throughput per port over a PCIe 4.0 x16 host interface. It incorporates advanced hardware engines for IPsec, TLS, and RoCE v2 acceleration.
Compatibility
Compatible with Lenovo ThinkSystem SR650 V2, SR630 V2, SR650 V3, SR665 V3, and SR670 V2 systems equipped with a PCIe 4.0 x16 slot. It accommodates 100G QSFP56 optical modules and direct-attach copper cables, and is backward compatible with 40G QSFP+ and 25G/50G configurations using breakout cables.
How to identify a genuine unit
Distinguished by a Lenovo parts label displaying option code 4XC7A08248, FRU part number 01PE834, and feature code B86V. Two QSFP56 optical cages populate the rear bracket, accompanied by status LEDs. In Linux and hypervisor environments, the adapter operates under the official NVIDIA mlx5_core kernel driver.
Buying used
When evaluating a used ConnectX-6 Dx adapter, check the PCIe 4.0 x16 edge connector for scratches or cracked traces. Inspect the dual QSFP56 optical cages for bent internal pins. Check firmware levels using Mellanox MFT tools to confirm genuine Lenovo PSID and ensure proper firmware updating capability.
Reference prices (last 12 months, updated 2026-10-18)
New: USD 890 (1 sighting, Oct 2026)
Refurbished: USD 680 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| ServerMonkey | refurbished | USD 680 | Tested working pull with both brackets | 2026-10-18 |
| Provantage | new | USD 890 | Factory sealed Lenovo option kit | 2026-10-02 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
- Lenovo ThinkSystem SR650 V2
- Lenovo ThinkSystem SR630 V2
- Lenovo ThinkSystem SR650 V3
- Lenovo ThinkSystem SR665 V3
- Lenovo ThinkSystem SR670 V2
Buying or selling 4XC7A08248?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Lenovo Technical Reference - 4XC7A08248, checked 2026-10-27
- Lenovo Technical Reference - 4XC7A08248, checked 2026-10-27