Lexar LNM620 – 256GB

Lexar NM620 256GB NVMe SSD – M.2 2280 PCIe Gen3x4 Internal Drive

The Lexar NM620 256GB is an M.2 2280 NVMe solid state drive built for users ready to move beyond slow SATA storage or ageing mechanical hard drives. Specifically, it uses a PCIe Gen3x4 interface with NVMe 1.4 protocol, fitting any laptop or desktop with a compatible M.2 slot. As a result, it serves as a practical, cost-effective upgrade for everyday computing, OS installs, and productivity workloads.

Technical Specifications

Identity & Form Factor

Model: Lexar NM620 Part Number: LNM620X256G-RNNNG Capacity: 256 GB Form Factor: M.2 2280 Dimensions: 80 × 22 × 2.25 mm Weight: 9 g

Interface & Controller

Interface: PCIe Gen3x4 Protocol: NVMe 1.4 Controller: InnoGrit IG5216 (Shasta+) DRAM Cache: None (pseudo-SLC write cache used) NAND Type: 3D TLC (Micron, 96-layer)

Performance

Sequential Read: Up to 3,300 MB/s Sequential Write: Up to 1,300 MB/s Random Read: Up to 92,000 IOPS Random Write: Up to 240,000 IOPS

Endurance & Reliability

TBW: 125 TB DWPD: 0.44 MTBF: 1,500,000 hours Shock Resistance: 1,500G at 0.5 ms Vibration Resistance: 20G (X, Y, Z axes)

Environmental & Warranty

Operating Temperature: 0°C to 70°C Storage Temperature: −40°C to 85°C Warranty: 3 years

Use Cases & Applications

Who Is This Drive For?

The Lexar NM620 256GB suits users upgrading a laptop or desktop from a mechanical hard drive or an older SATA SSD. For instance, installing Windows 11 on this drive reduces boot times substantially compared to any spinning drive. Moreover, it works well as a dedicated OS drive in a dual-drive desktop build, pairing with a larger SATA SSD for media storage. In addition, students and office users benefit from faster application load times without paying for high-end PCIe Gen4 drives.

What Workloads Does It Handle Well?

Operating system installation, office productivity software, light photo editing, and casual gaming all fall comfortably within this drive’s capability. Furthermore, everyday file transfers and browser-heavy workflows feel noticeably more responsive compared to SATA alternatives. However, users running continuous large-file write workloads — such as sustained 4K video capture or high-frequency database writes — will benefit more from a drive with a dedicated DRAM buffer and higher TBW rating. Therefore, this drive is best matched to read-heavy and mixed-use environments rather than write-intensive professional workloads.

Will It Work With My System?

The NM620 is compatible with any motherboard or laptop featuring an M.2 2280 slot that supports PCIe NVMe. However, it does not function in M.2 slots limited to SATA protocol only. Additionally, confirm your system BIOS supports NVMe boot before installation if you intend to use this as your primary OS drive. Similarly, check that your laptop does not restrict the M.2 slot to a single-lane PCIe connection, as this would reduce performance below rated speeds.

For users also considering a memory upgrade alongside this drive, browse compatible options in the RAM category. For official product documentation, warranty registration, and compatibility tools, visit the Lexar global website.