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4XB7A79661: Lenovo ThinkSystem 2.5" PM9A3 1.92TB Read Intensive NVMe PCIe 4.0 HS SSD

Lenovo 4XB7A79661 SSD1.92 TBPCIe 4.0 x4 NVMe2.5" Hot-Swap
LenovoSSDsPCIe 4.0 x4 NVMe

Also listed as: 4XB7A79661-01, 03GX051, SP47A79661, BMZ1, MZ-QL21T90, MZQL21T9HCJR

1.92TB enterprise 2.5-inch hot-swap PCIe 4.0 x4 NVMe solid-state drive built on Samsung PM9A3 for high-throughput computing on ThinkSystem servers.

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Specifications

Part number4XB7A79661
BrandLenovo
TypeSSDs
Other numbers4XB7A79661-01, 03GX051, SP47A79661, BMZ1, MZ-QL21T90, MZQL21T9HCJR
Capacity (GB)1,920
Form factor2.5" Hot-Swap
InterfacePCIe 4.0 x4 NVMe
Nand typeTLC V-NAND
Dwpd1

About the 4XB7A79661

The Lenovo 4XB7A79661 is an enterprise 1.92TB 2.5-inch hot-swap PCIe 4.0 x4 NVMe solid-state drive built on Samsung's PM9A3 controller and 128-layer V-NAND architecture. Delivering sequential read speeds up to 6,800 MB/s and random read throughput of up to 850,000 IOPS, it is designed for demanding enterprise applications, database caching, virtualization clusters, and high-frequency analytical processing.

Compatibility

Compatible with Lenovo ThinkSystem SR650 V2, SR630 V2, SR650 V3, SR630 V3, SR645 V3, and SR665 V3 servers configured with 2.5-inch NVMe or AnyBay backplanes. It ships pre-installed in a genuine Lenovo hot-swap drive caddy. It is not compatible with SATA-only or SAS-only drive backplanes without NVMe cabling.

How to identify a genuine unit

The front carrier displays a Lenovo 1.92TB NVMe PCIe 4.0 label. The drive mechanism label lists Lenovo option part number 4XB7A79661, FRU code 03GX051, feature code BMZ1, and Samsung base model MZQL21T9HCJR. In XClarity Controller and OS device managers, it registers as an authentic Lenovo NVMe device.

Buying used

When purchasing pre-owned PM9A3 NVMe drives, check nvme smart-log data for percentage used endurance, critical temperature warnings, and media error counts. Inspect the U.2 connector for physical damage or debris. Verify that the drive operates without link throttling at full PCIe 4.0 x4 speed.

Reference prices (last 12 months, updated 2026-10-22)

2 price sightings from 2 sellers (refurbished, new), latest Oct 2026.

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Check compatibility with Lenovo

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo 4XB7A79661.

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