Single-Sided PCB Design: All components (NAND chips, controller, etc.) are mounted on one side of the SSD.This makes the drive thinner and more compatible with devices that have limited clearance on one side, such as ultrabooks, thin laptops, or tightly packed small-form-factor PCs.
Superior Thermal Design
OSCOO ON900B PRO M.2 2242 PCIe 3.0 SSD strikes a perfect balance between compact size and high performance, making it an excellent choice for users with space constraints who still want fast and reliable storage. Whether you’re upgrading a laptop or building a compact PC, OSCOO M.2 2242 NVME PCIe3.0*4 solid state drive delivers impressive speed and efficiency.
Specifications
Model
ON900B PRO
Product Dimensions
42 × 22 × 2mm (1.65" × 0.87" × 0.08")
Read Speed
Up to 3500MB/s
Write Speed
Up to 3000MB/s
Interface Protocol
NVMe PCIe Gen3.0×4
Function Support
TRIM, NCQ, S.M.A.R.T
Support System
Windows 10/11, Linux
Operation Temperature
0~70°C
Storage Temperature
-40~85 °C
Form Factor
M.2 2242
Dram Cache
No
Heatsink
No
Product net weight
7.5g
Capacities
512GB, 1TB, 2TB
NAND
3D NAND Flash
TBW (Endurance)
512GB: 325TBW
1TB: 650TBW
2TB: 1300TBW
Warranty
3 years
5-10 Business Days
30-Day Return Policy
Secure Payment
3 Years Warranty
Frequently Asked Questions
This resource is crafted to help you find information easily and efficiently.
What makes the ON900B PRO different from the standard ON900B?
The ON900B PRO features three key upgrades:
- Single-sided PCB design: All components on one side for better compatibility with ultra-thin devices
- Higher speeds: Up to 3,500MB/s read and 3,000MB/s write (vs. 2,100/1,800MB/s on standard model)
- Thinner profile: Just 2mm thick (vs. 3.5mm), making it 43% slimmer
This makes the PRO ideal for ultrabooks, tablets, and space-constrained systems where every millimeter counts.
Why is single-sided design important?
Single-sided design offers several critical advantages:
- Ultra-thin compatibility: Fits devices with minimal clearance (some M.2 slots only accept single-sided drives)
- Better thermal management: Heat concentrates on one side for more efficient cooling
- Improved stability: Reduced risk of PCB warping in tight spaces
- Direct heat contact: Can make better contact with device chassis or thermal pads
Many premium ultrabooks and compact devices specifically require single-sided M.2 SSDs.
Will the ON900B PRO fit in my device if the standard ON900B does?
Yes, and more! The ON900B PRO will fit anywhere the standard model fits, plus additional ultra-thin devices that may not accommodate thicker drives. At just 2mm thick, it's one of the slimmest M.2 2242 SSDs available, making it compatible with:
- Microsoft Surface devices
- Ultra-thin laptops (ThinkPad X1, Dell XPS series)
- Steam Deck and handheld gaming devices
- Industrial embedded systems with height restrictions
Can I achieve the advertised 3,500MB/s speeds on any system?
To reach maximum speeds, your system needs:
- PCIe 3.0 x4 interface (minimum requirement)
- NVMe support in BIOS/UEFI
- Sufficient PCIe lanes available
- Compatible M.2 slot (Key M or Key B+M)
The drive is also compatible with PCIe 4.0/5.0 systems but will operate at PCIe 3.0 speeds. Most laptops from 2018 onwards support these speeds. Older systems with PCIe 2.0 will still work but at reduced speeds (~1,500MB/s).
Will this work in a Steam Deck or handheld gaming console?
Yes! The ON900B PRO is an excellent choice for:
- Steam Deck: Perfect fit for the M.2 2242 slot
- ASUS ROG Ally: Compatible with internal storage upgrade
- Other handheld PCs: Works with most devices using M.2 2242 format
The single-sided design is particularly important for these devices, as their internal space is extremely limited. The high speeds also reduce loading times in games significantly.
Can I use this in a desktop PC with a 2280 M.2 slot?
Yes, you can use a 2242 SSD in a 2280 M.2 slot with a small adapter or extender, which effectively bridges the length difference and allows you to secure the smaller drive with the 2280 slot's screw hole. Without an adapter, a 2242 SSD will not have the correct screw mounting point on a 2280 slot and would be insecure.
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