WD Blue SN550

Based on 94 reviews

The Looria Grade (A - F) accounts for multiple factors, including sentiment, helpfulness, and more. Learn about our sources and ranking.

  • Great for Windows 10
  • Slots right into the machine
  • No issues what so ever
  • Nice nvme drive for an all around workstation that needs performance
  • Plenty of storage and it's nice and fast


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WD Blue SN550 Review
The WD Blue SN550 offers up a great value in a PCI Express-based M.2 solid-state drive, holding its own in our tests against drives almost twice its cost.
Chris Stobing
5 months ago
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[Prebuilt] CyberPowerPC | i5-11600KF | 16 GB DDR4 3200 | RTX 3070 | 1TB NVMe SSD | $1499 | Code: SUMMIT
SSD: $110 1TB WD Blue SN550. Case: $100 Syber L Series ATX Full-Tower Gaming Case w/ USB 3.0, ARGB & Both Side Tempered Window Panel. PSU: $105 Thermaltake Toughpower GF1 Series 750W 80 PLUS GOLD Ultra Quiet Full Modular Power Supply.
Speedy drive for everyday, mainstream computing at an EXCELLENT price
I have owned, customized, and built a lot of computers over the past 30 years. Hard drives have come a long way in regards to speed and reliability. Western Digital (WD), once headquartered in Irvine, CA, and now in San Jose, has been one of the leading manufacturers. WD introduced a COLOR CODING sy...
Outdoor Enthusiast | Geek | Photographer
3 years ago
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DirectStorage requires 1 TB+ NVMe SSD, Windows 11 and a DX12 Ultimate GPU
It is extremely efficient (rivaling or beating most consumer RAID hardware solutions), is managed by Windows. You can use Storage Spaces to create RAID 0 (striped) disk setups, which preserves all of the space of your combined disks, but also improves sequential read/write peformance, sometimes dramatically. For example, a PCIe 3.0 Gen x4 bus with an NVMe is limited to approximately 4000 MB/s; with a single WD Blue SN550, the sequential read/write performance is \~2000 MB/s, and striping via RAID 0 in Storage Spaces improves this to \~3,300 MB/s.
Great value for NVME performance, marginally better than SATA SSD
Disk drives are no doubt a bottleneck for data transfer, so it's always best to go the route that reduces potential bottlenecks whenever possible. I've posted a screenshot of a benchmark showing results for this NVME SSD, on an ASUS ROG Strix X570-e motherboard w/Ryzen 7 3700X CPU. The WD Blue SN550...
3 years ago
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[Prebuilt] CyberPowerPC - Liquid Cooled AMD Ryzen 7 3700X - 16GB Memory - RTX 3070 - 1TB SSD - $1350
SSD : WD Blue SN550 1TB. Mobo : Gigabyte B450. CPU Cooler : Cooler Master 120mm AIO. RAM : 3000MHz.
Doesn't Disappoint; Just Do Your Research!
My old Samsung 850 EVO 250gb SSD boot drive was consistently getting too full so it was time to upgrade. This is my first NVME drive and it does not disappoint. Plenty of storage and it's nice and fast. Sure there are faster NVME drives out there but for general use you don't really need anything fa...
2 years ago
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[ssd] Crucial mx500 1tb m.2 ssd (89.99 lowest price ever on amazon)
it's one of the best sata ssds but in the end its still much slower than most nvme drives that get around this price, such as the wd sn550 or those recent sales on the xpg sx8200 pro. QLC nvme drives will generally be faster than the mx500 in typical use cases but much slower for large file transfers that exhaust the cache on the QLC drives (at which point theyre as slow as a hard drive).
Dissappointed. Slow boot and no clone software. Horrible experience.
Very slow boot for a NVME. Speed is similar to my very old sata ssd. No instructions or clone software for the average user like myself. Only paperwork was warranty paperwork. I had to google for an hour and use a 3rd party clone software to clone my windows and backups. Horrible experience. WD for ...
Mr. Yao
3 years ago
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The Samsung SSD 980 (500GB & 1TB) Review: Samsung's Entry NVMe
>By contrast, the WD Blue SN550 shows much stronger signs of optimization specifically for 4kB block sizes: the effect is small for random reads but huge for random or sequential writes. Sub-4kB accesses are a generally not worth the trouble on the SN550. This drive also appears to occasionally run out of SLC cache during the random write block size testing. For what it's worth, I got a 500 GB SN550 a few weeks ago, and it came with the block size set to 512 B out of the box.
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Digital Storage Capacity

1 TB

Hard Disk Interface


Connectivity Technology



Western Digital