While PCIe gen 4.0 drives are starting to trickle into the market now that AMD and Intel both support it on their latest chipsets. The reality is that most PCs out right now still use PCIe gen 3.0 so there is still a lot of need for them. So it isn’t a big surprise to still see companies bringing out new gen 3 drives. A good example of this is the NM620 from Lexar which came out a few months ago which pushes gen 3.0 to its limits. Today I’m going to check out the NM620 to see what Lexar has going on and to see how their new drive performs.

Product Name: Lexar NM620 512GB

Review Sample Provided by: Lexar

Written by: Wes Compton

Amazon Affiliate Link: HERE




256GB, 512GB, 1TB

Form Factor

M.2 2280


PCIe Gen3x4


256GB sequential read up to 3000MB/s read, sequential write up to 1300MB/s1

IOPS: up to 92/240K


512GB sequential read up to 3300MB/s read, sequential write up to 2400MB/s1

IOPS: up to 200/256K


1TB sequential read up to 3300MB/s read, sequential write up to 3000MB/s1

IOPS: up to 300/256K

NAND flash


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)


256GB: 125TB, 512GB: 250TB, 1TB: 500TB




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”


9 g


Five Years limited warranty


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