Western Digital Blue SA510 500GB SATA III 2.5"

The WD Blue SA510 has the specs of a decent budget SATA SSD and the reliability of a house of cards. Buy it if you enjoy surprise data loss and warranty phone trees.

Sequential reads hit 560 MB/s and writes land at 510 MB/s, which is about as good as SATA III gets. The DRAM cache helps with consistency, and random IOPS of 90K read and 82K write are solid for this class. But here's the thing: our database puts this drive's speed at the 35th percentile overall. That's not because the numbers are bad, it's because NVMe drives have made SATA look ancient. For a SATA drive, it's fine. For 2025, it's a dinosaur. The real surprise isn't the speed, it's that some owners report the drive freezing for a minute at a time every couple hours before eventually dying completely.

The SA510 competes against drives like the Crucial T700, Samsung 990 EVO Plus, and MSI SPATIUM M480 PRO, but those are all NVMe drives in a completely different performance class. If your machine only has SATA, the real comparison is against something like a Crucial MX500 or Samsung 870 EVO, both of which have far better reliability reputations. The SA510's feature set ranks in the 94th percentile, which is nice, but features don't matter when the drive won't stay alive. For anyone with an M.2 slot, skip this entirely and grab any budget NVMe drive instead.

Pricing is all over the place. US listings range from USD 122 to USD 183 for the same 500GB drive, and Newegg has the best deal at the low end. Canadian buyers face an even wider spread, CAD 162 to CAD 270, with Memory Express offering the cheapest option. Even at the low end, you're paying a premium for a drive that might brick itself. There are cheaper SATA SSDs with better reliability track records. The 200 TBW endurance rating is decent, but it doesn't matter if the drive dies at 10 TBW.

The WD Blue SA510 is a budget SATA SSD that looks fine on paper but has a reliability problem you can't ignore. It's got DRAM cache, TLC NAND, and a 5-year warranty, which sounds great until you read what actual owners are saying. Multiple verified buyers report drives dying within weeks or months. That's not a fluke, that's a pattern. If you're upgrading an old laptop from a spinning hard drive, the speed jump is real. But you're rolling the dice on whether this thing survives past its return window.

If you're looking for a reliable boot drive or anything you'll store important files on, this isn't it. Go get a Crucial MX500 or Samsung 870 EVO instead. If you're just looking for a cheap scratch disk for a secondary machine and you're okay with the gamble, fine, but don't say we didn't warn you.

Don't buy this drive. The specs are fine for SATA, the price is okay at the low end, and the 5-year warranty looks reassuring. But when user sentiment lands in the 1st percentile and multiple owners report catastrophic failures within months, none of that matters. You're not saving enough money to justify the risk of losing your data. Get a Crucial MX500 or Samsung 870 EVO instead. They cost about the same and won't make you pray every time you boot up.