The WD SN520. NVMe over PCIe Gen3 x2 reaches 1,600 MB/s writes, while the Corsair Neutron tops out near 511 MB/s on SATA.

Will the WD SN520 fit my laptop?

Only if it has an M.2 2242 slot. Many laptops take 2280 cards, so check the slot length before buying.

Is the Corsair Neutron worth it in 2026?

Only for machines with a 2.5-inch SATA bay and no M.2 slot. Otherwise the SN520 is faster and priced at $89.99 at neweggbusiness.com as of November 7, 2026.

Neither listing gives endurance ratings, so compare TBW figures from the makers before relying on either for heavy writes.

Does the SN520 work in a Mac?

The listing says Mac compatible, but Macs need the right M.2 adapter and macOS support varies by model. Confirm before buying.

Corsair Neutron 256GB SSD vs WD PC SN520 256GB NVMe SSD

The Western Digital SN520 is the better buy for almost everyone. It is far faster over NVMe (up to 1,600 MB/s writes) and costs $89.99 at neweggbusiness.com as of November 7, 2026. The Corsair Neutron is a SATA 2.5-inch drive with no current price given, so compare only if you need a 2.5-inch bay drive and find it cheaper.

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