
PNY CS900
Score: 67/100
SanDisk Extreme
Score: 87/100Rankings

The SanDisk Extreme Portable SSD 1TB delivers high-performance NVMe speeds of up to 1,050 MB/s read and 1,000 MB/s write while offering IP65 water and dust resistance in a lightweight 52 g package. Its capacity is limited to 1 TB and it lacks the ultra-fast 2,000 MB/s class of newer models. Ideal for creators and mobile professionals needing fast, rugged portable storage.

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 | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
535 MB/s | 1,050 MB/sbest | |
515 MB/s | 1,000 MB/sbest | |
2,000,000 hoursbest | — | |
3 years | 5 yearsbest | |
| ↓ lower better | 45 gbest | 52 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Interface | SATA-III | USB 3.2 Gen 2 |
Performance(2) | ||
Sequential Read Speed (MB/s) | 535 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 515 MB/s | 1000 MB/s |
General(1) | ||
Warranty (years) | 3 years | 5 years |
Design & Build(3) | ||
Form Factor | 2.5-inch | Portable |
Weight (g) | 45 g | 52 g |
Dimensions (L×W×H) (mm) | 100x70x7 mm mm | 101x52x10 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 commend the Extreme Portable SSD 1TB for its high sequential read speed, noting it delivers smoother playback when editing video files. They also appreciate its lightweight, bus-powered design and the inclusion of both USB-C and USB-A adapters, which together make it a solid choice for creators on the move.
Everyday users have limited publicly documented feedback, but the available comments emphasize appreciation for the drive's speed, portability, and cross-platform compatibility.
“the speed of this SSD mainly when reading files will provide smoother playback”

