Lexar NM620 M.2 512GB SSD Review

Elevate your PC’s performance with faster speed and more efficiency

Lexar NM620

Lexar’s NM620 M.2 Gen3x4 SSD focuses on providing higher performance for power users with heavy workloads and those who work and play on the same machine. Built around Lexar’s own DM620 controller, Lexar’s NM620 offers up to 3300MB/s read speeds and 3000MB/s writes. On top of speedy throughput, the NM620 employs a Low-Density Parity-Check for catching and fixing data errors on the fly with minimal impact to performance, giving you peace of mind backed by a 5-year warranty. Let’s check it out!


PC Test Bench would like to thank Lexar for providing us with a sample of the NM620 to check out.

Lexar’s take on the NM620 Drive:

Designed for intensive workloads, the Lexar NM620 M.2 2280 PCIe Gen3x4 NVMe SSD offers next-level performance that puts you in the computing fast lane with speeds up to 3300MB/s read and 3000MB/s write1. It’s supported by the PCIe Gen3x4 NVMe 1.4 technology standard and built with the latest 3D NAND flash.

Lexar NM620 M.2 512GB SSD Review 1 2280, Lexar, M.2, NM620, nvme, SSD

This is the right fit for users who want next-level performance for heavy workloads, as well as those who expect powerful and effective performance for demanding creative workstations and gaming experiences.


About Lexar:

Lexar was split off from Cirrus Logic in 1996 in San Jose, California, and manufactured flash storage products including SD and CF memory cards, USB flash drives, and Solid-State Drives. Lexar was later acquired by Micron in 2006 and continued on until 2017 until parent company Micron announced it would discontinue its retail removable media storage business and put it up for sale. Lexar branding and trademark rights were purchased by China-based memory company Longsys.



  • High-speed PCIe Gen3x4 interface: 3300MB/s read and 3000MB/s write – NVMe 1.4 supported
  • 2 2280 form factor
  • Get 6x the speed of a SATA-based SSD3
  • Ideal for PC enthusiasts and gamers
  • 3D NAND
  • Features LDPC (Low-Density Parity Check)
  • Shock and vibration resistant with no moving parts
  • Five-year limited warranty


  • Capacity – 256GB, 512GB, 1TB
  • Form Factor – M.2 2280
  • Interface – PCIe Gen3x4
  • Speed
    • 256GB
      • sequential read up to 3000MB/s
      • sequential write up to 1300MB/s
      • IOPS: up to 92/240K
    • 512GB
      • sequential read up to 3300MB/s
      • sequential write up to 2400MB/s
      • IOPS: up to 200/256K
    • 1TB
      • sequential read up to 3300MB/s
      • sequential write up to 3000MB/s
      • IOPS: up to 300/256K
    • NAND flash – 3D TLC
    • Operating Temperature – 0° C to 70° C (32°F to 158°F)
    • Storage Temperature – -40° C to 85° C (-40°F to 185°F)
    • Shock Resistant – 1500G, duration 0.5ms, Half Sine Wave
    • Vibration Resistant – 10~2000Hz, 1.5mm, 20G, 1 Oct/min, 30min/axis(X,Y,Z)
    • TBW
      • 256GB: 125TB
      • 512GB: 250TB
      • 1TB: 500TB
    • MTBF – 1,500,000 Hours
    • Dimension (L x W x H) – 80 mm x 22 mm x 2.25 mm / 3.15” x 0.87” x 0.09”
    • Weight – 9g
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