PNY CS900 250GB 2.5" SATA III Internal SSD
- Internal Solid State Drive
- 250 GB
- 1
- 1
A dependable, no-frills SATA SSD for reviving an older laptop or desktop, though it is not the drive to buy if your system already supports NVMe.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
Styles Available
Need a different one? Pick on Amazon →
How it ranks among the 19 internal solid state drives we track
4.7★ across 5,400 Amazon ratings, Bayesian-smoothed toward the category average.
5,400 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 internal solid state drives we track - how the scorecard works · full internal solid state drives data report. Confidence: high - strong rating volume and complete data.Updated 6 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The PNY CS900 is a 250GB 2.5 inch SATA III solid state drive built as a straightforward swap for an aging laptop or desktop hard drive. It targets the upgrade market rather than high-end builds, aiming at faster boots and app loads without a big price tag.
This is an entry-level SSD rather than a performance flagship: PNY rates it at up to 535MB/s read and 500MB/s write, which is well within normal SATA III territory but far below what an NVMe drive delivers. Its main selling point is simplicity, drop it into a SATA II or III bay and the difference from a spinning hard drive is immediate.
- Up to 535MB/s read, 500MB/s write
- 2.5 inch SATA III form factor
- No moving parts
- Backward compatible with SATA II
Who it's for
Fits anyone replacing a mechanical hard drive in an older laptop or desktop who wants faster boots without switching to NVMe or rebuilding the system. Not the choice for someone who already has an NVMe slot free, since a SATA drive will bottleneck a newer motherboard.
Strengths and trade-offs
Drawn from this product's published specifications.
- Straightforward drop-in replacement for a hard drive
- No moving parts, up to 3-year warranty
- Backward compatible with SATA II systems
- Low power draw
- SATA III speeds only, no NVMe option
- 250GB capacity is tight for large game libraries
Performance notes
As a SATA III drive, the CS900 is capped by the interface itself at roughly 535MB/s read and 500MB/s write, figures PNY states directly. It has no moving parts, which PNY ties to lower failure rates than a mechanical hard drive, and the drive stays backward compatible with SATA II systems at reduced speed, so it also works as an upgrade path for older hardware.
Specifications
| Brand | PNY |
|---|---|
| Model | SSD7CS900-250-RB |
| Dimensions & fit | |
| Item Weight | 1.6 ounces |
| Item Dimensions L x W x Thickness | 7.1 × 5.9 × 0.3 inches |
| Cache Memory Installed Size | 250 |
| HardDrive Size | 250 GB |
| Capacity & performance | |
| Digital Storage Capacity | 250 GB |
| Media Speed | 500 megabits_per_second |
| Read Speed | 535 megabytes_per_second |
| Construction & materials | |
| Enclosure Material | NAND flash memory |
| Color | Black |
| Compatibility & installation | |
| Compatible Devices | Laptop |
| Connectivity Technology | SATA |
| Hard Disk Interface | Solid State |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Number of Items | 1 |
| Additional Features | Hardware Encryption |
| BuiltIn Media | ssd |
| Specific Uses For Product | Business, Multimedia, Personal, Gaming |
| Mfr Part Number | SSD7CS900-250-RB |
| Data Transfer Rate | 535 megabits_per_second |
| Hard Disk Form Factor | 2.5 inches |
| Form Factor | 2.5-inch |
| Hard Disk Description | Solid State Hard Drive |
| Hardware Platform | Mac, PC |
How it compares
This product against the closest alternatives we track in internal solid state drives.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| PNY CS900 250GB 2.5" SATA III Internal SSDThis product | 4.7 / 5 | 5,400 | 4.7 / 5 |
| Kingston NV3 1TB M.2 2280 NVMe SSDKingston | 4.7 / 5 | 13,800 | 4.8 / 5 |
| WD_Black SN7100 1TB NVMe SSDWD_Black | 4.8 / 5 | 6,400 | 4.8 / 5 |
| Samsung SSD 870 EVO SATA III 2.5” 1TBSamsung | 4.8 / 5 | 45,500 | 4.7 / 5 |
| Crucial P310 1TB SSDCrucial | 4.7 / 5 | 11,000 | 4.7 / 5 |
Similar internal solid state drives from other brands
Questions about the PNY SSD7CS900-250-RB
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Will the PNY CS900 work in an older SATA II laptop?
Yes, PNY states it's backward compatible with SATA II at 3GB/s, though speeds will be capped below its SATA III rating.
Is 250GB enough for a Windows boot drive?
It's enough for the operating system and a set of core applications, though large game libraries or media collections will need extra storage elsewhere.
Does this drive need special drivers to install?
No, it installs as a standard 2.5 inch SATA drive with no special drivers needed.