This makes it a cracking deal for anyone looking to stuff more storage into a PS5, gaming rig, or laptop without shelling out for Gen 5 nonsense that most people won’t notice day-to-day.

The SN7100 uses standard M.2 PCIe Gen 4 connections and offers up to 7,250MB/s reads and 6,900MB/s writes, which is around 35 per cent faster than the older SN770, according to WD’s own spec sheets. It also runs off TLC 3D NAND, which strikes a decent balance between performance and not dying too soon.

Power draw has apparently been halved compared to the last gen, which is a nice bonus if you're stuffing it into a laptop or small form factor PC and don’t want it to cook your internals.

It’s officially compatible with Sony’s PlayStation 5, so if you’re out of room on your console after downloading yet another 200GB patch for a game you’ll never finish, this could be the answer.

Western Digital reckons it’ll take around 2,400TB of writing before this thing starts falling over, which should last anyone not running a cloud server from their living room.

No word on how long Amazon will keep the discount live, but it’s likely tied to Prime Day 2025 bait.

- WD_BLACK 4TB SN7100 - $249.99 at Amazon.com