8TB NM790 SSD PCIe Gen4 NVMe M.2 2280 Internal Solid State Drive, Up to 7000/6200 MB/s Read/Write, Compatible with PS5, for Gamers and Creators, Black (LNM790X008T-RNNNU)

Snagged one of these pre Black Friday for CAD$668. That's a decent price: earlier this fall I got the 4TB version for CAD$275. Both of those sticks are now in my UGreen NXP4800 NAS box, running Kubuntu 24.04. I've given them a solid workout now, with several TB of data in/out, and both Lexar NVMe sticks have performed very well. Fast, no sign of any slowdowns under load, and they run cool. The 8TB is in the 45-47C range, and the 4TB at 30-33C, very safe temperatures. Anything below 70C is fine, really, and these don't even get close. A great deal at the sale price, not so good at the "normal" $900+ numbers.

It suffers a similar problem to other lower value M.2 SSDs and the old Samsung 980 - it performs very well until the cache buffer fills up, then the data transfer rate throttles right down. I use this drive for video files (so large files that want contiguous blocks of memory. Initially, it starts off transferring at about 2200 Mbps (Using blackmagic speed test), but for a sustained 5 minute test, the speed throttles right down to more like 800Mbps, and this is very likely to the cache/buffer filling up. You are better off getting the WD Black SN850 or the newer generation.

Fast and easy to install. Only negative is it is very expensive.

So far so good! CrystalDiskMark is showing me 6,800+ MB/s read speeds (Q8T1). Not a whole lot to say about it, other than it is (as expected) quite fast, and I have had no issues with it.

Love this product! Its build quality and functionality are a 10/10. Its storage capacity is insane. I love its simple design, and the heat seems pretty normal for any typical NVMe SSD. I will be buying a second one for my little brother.