Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Western Digital

Performance, endurance, NAND architecture, thermals, and compatibility.
| Merchant | Price | $/GB |
|---|
| Availability |
|---|
| Total |
|---|
Newegg | $200.34 | $0.801 | In Stock | $200.34 | Buy |
About This Product
The Western Digital Blue SN550 is an entry-level NVMe SSD, offering a significant speed upgrade over SATA SSDs with sequential read speeds up to 2400 MB/s. It is suitable for general computing tasks and as a boot drive for users seeking faster load times than traditional hard drives. While faster than SATA, it does not compete with high-end PCIe Gen 4 NVMe drives in raw performance.
Verdict
“A solid choice for budget-conscious users needing a fast boot drive or general storage.”
Performance, endurance, NAND architecture, thermals, and compatibility.
Sequential, random, and sustained speeds.
Sequential Read
2,400 MB/s
Sequential Write
950 MB/s
4K Random Read
170K IOPS
4K Random Write
135K IOPS
How long the drive lasts under sustained writes.
TBW (lifetime writes)
150 TB
Drive Writes/Day
0.82 DWPD
MTBF
1.7M hours
Warranty
2 years
Controller, NAND, and cache — what most retailers don't show you.
DRAM Cache
No
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