
PNY CS900
Score: 67/100
Fanxiang S101
Score: 62/100Rankings

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.

The Fanxiang S101 1TB SATA SSD offers an affordable upgrade path for older laptops and desktops, delivering up to 550 MB/s read speeds with reliable TLC NAND. Its limitations include the SATA III bandwidth ceiling and lack of advanced features such as DRAM cache or hardware encryption. It is best suited for budget-conscious users needing a simple storage boost on legacy systems.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
535 MB/s | 550 MB/sbest | |
515 MB/sbest | — | |
2,000,000 hoursbest | — | |
3 years | 5 yearsbest | |
| ↓ lower better | 45 gbest | 45.4 g |
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) | 535 MB/s | 550 MB/s |
Sequential Write Speed (MB/s) | 515 MB/s | 470-520 MB/s |
Storage(1) | ||
NAND Type | 3D TLC | TLC |
General(1) | ||
Warranty (years) | 3 years | 5 years |
Design & Build(3) | ||
Form Factor | 2.5-inch | 2.5" |
Weight (g) | 45 g | 45.4 g |
Dimensions (L×W×H) (mm) | 100x70x7 mm mm | 100×69×7 mm mm |


Products in the top-left offer the best value (high score, low price).

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.

Professional reviewers consider the S101 a solid, low-cost option for users who need a simple SATA upgrade. While it delivers the expected speed gains over HDDs, its SATA III bandwidth and lack of premium features make it unsuitable for performance-critical workloads, and external use via USB shows markedly lower speeds.