WD Blue SN550
The WD Blue SN550 is an NVMe SSD sold in 1 capacity: 1TB. Right now the 1TB is the cheapest per gigabyte at $0.160/GB. It scores 85 out of 100 among NVMe SSDs.
Prices update daily and may differ at the retailer. This page contains affiliate links.

Every capacity compared
Capacity changes more than space: price per gigabyte, rated write speed and endurance usually improve as the drive gets bigger.
| Capacity | Price | Per GB | Read / write | Endurance | Score | Buy |
|---|---|---|---|---|---|---|
| 1TB M.2 2280 | $160.19 | $0.160/GB | 2,400 / 1,950 | 600 TBW | 85 |
Read and write are the maker’s rated sequential speeds in MB/s. Open a capacity for every offer, price history and the full spec sheet.
What every WD Blue SN550 shares
Drive
- Interface
- PCIe 3.0 x4
- Protocol
- NVMe
- NAND type
- TLC
- Cache
- DRAM-less (HMB)
- Warranty
- 5 years
No DRAM of its own; borrows a little system memory (HMB). Fine for games, slower when heavily loaded.
Inside
- Controller maker
- Western Digital
Compare the WD Blue SN550 with every other drive on the NVMe SSDs comparison table.
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