Kingston A400
Score: 71/100
PNY CS900
Score: 67/100Rankings
The Kingston A400 240 GB SSD is a budget-friendly 2.5-inch SATA drive offering up to 500 MB/s read speed and very low power draw. Its write speed caps at 350 MB/s and endurance is limited to 80 TB TBW. Ideal for users upgrading older laptops or desktops who need a cost-effective OS drive.
The PNY CS900 1TB is a budget-friendly 2.5-inch SATA III SSD delivering solid sequential speeds and low power draw. Its main trade-offs are limited SATA bandwidth, lack of endurance data and advanced features. Best suited for users upgrading older laptops or desktops where cost and basic performance matter.
| Attribute | | |
|---|---|---|
240 GB | 1,000 GBbest | |
500 MB/s | 535 MB/sbest | |
350 MB/s | 515 MB/sbest | |
80 TBbest | — | |
— | 2,000,000 hoursbest | |
| ↓ lower better | 0.279 Wbest | — |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 0.195 Wbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity(1) | ||
Interface | SATA III | SATA-III |
Performance(2) | ||
Sequential Read Speed (MB/s) | 500 MB/s | 535 MB/s |
Sequential Write Speed (MB/s) | 350 MB/s | 515 MB/s |
Storage(1) | ||
Storage Capacity (GB) | 240 GB | 1000 GB |
Reliability(1) | ||
Mean Time Between Failures (hours) | 1000000-2000000 hours | 2000000 hours |
Design & Build(3) | ||
Form Factor | 2.5 inch | 2.5-inch |
Weight (g) | 41 g | 45 g |
Dimensions (L×W×H) (mm) | 7.1 x 69.9 x 100.1 mm mm | 100x70x7 mm mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors praise the Kingston A400 240GB for its impressive speed uplift over mechanical drives, rugged build quality, and excellent value at a low price. However, they caution that its write speed ceiling, modest 80 TB TBW endurance, and inconsistent MTBF figures make it less suitable for heavy-write or enterprise scenarios.
Everyday users overwhelmingly appreciate the noticeable boost in boot times, quieter operation, and straightforward installation, often describing the drive as feeling truly ten times faster than their old HDDs.
Professional reviewers and editors are scarce for this model; vendor and spec-sheet commentary positions the CS900 as a reliable, value-oriented HDD replacement, emphasizing its solid sequential performance and low power draw while noting the lack of advanced features found in higher-end SSDs.
Everyday users appreciate the noticeable speed boost over HDDs, especially faster boot and application launch times, and the quiet, low-heat operation. However, the limited amount of user feedback and absence of detailed endurance specs generate some uncertainty about long-term durability.
