ON1000 PRO NVMe PCIe Gen4.0x4 M.2 2280 SSD With Dram Cache

OSCOO ON1000 PRO M.2 2280 NVMe Gen4 SSD — 7,500MB/s, DRAM Cache, Heatsink Included

The ON1000 PRO is OSCOO's flagship Gen4 drive: up to 7,500 MB/s reads and 6,800 MB/s writes, near the ceiling of what PCIe Gen4×4 allows. Unlike most drives at this price, it pairs 3D TLC NAND with a dedicated DRAM cache for consistently fast performance under heavy, sustained workloads — and ships with a slim heatsink pre-installed.

Key specifications:

• Form factor: M.2 2280 (80 × 22 × 3.5 mm including slim heatsink), 9 g
• Interface: NVMe PCIe Gen4×4 (backward compatible with Gen3)
• Read speed up to 7,500 MB/s, write speed up to 6,800 MB/s
• DRAM cache onboard — sustained performance under heavy workloads, where DRAM-less drives slow down
• Capacities: 512GB / 1TB / 2TB
• 3D TLC NAND flash
• Endurance: 325 TBW (512GB) / 650 TBW (1TB) / 1,300 TBW (2TB); TRIM, NCQ, and S.M.A.R.T. supported
• Slim pre-installed heatsink — fits PS5 and standard motherboard M.2 slots without clearance issues
• Operating temperature 0–70°C, storage temperature −40–85°C
• Compatible with Windows 10/11, Linux, and PS5
• 3-year warranty

Who it's for: PS5 owners expanding storage (exceeds Sony's 5,500 MB/s recommendation with room to spare); content creators and video editors moving large files daily; gamers and power users who want flagship Gen4 performance with the endurance of TLC and DRAM.

ON1000 or ON1000 PRO? The standard ON1000 (5,200 MB/s, DRAM-less, single-sided 2 mm) is the value pick for everyday PC upgrades. The PRO adds 44% faster reads, a DRAM cache, and a pre-installed heatsink — the right choice for PS5, sustained creative workloads, and anyone who wants maximum Gen4 performance.

FAQ:

• Is it PS5-ready out of the box? Yes — at 7,500 MB/s it comfortably exceeds Sony's 5,500 MB/s recommendation, and the slim heatsink fits the PS5's expansion bay with no modification. Install, run the console's one-time speed check, done.
• Why does DRAM cache matter? DRAM-less drives are fine for light use but can slow noticeably during large sustained writes. The PRO's onboard DRAM keeps speeds consistent when transferring big video files or installing large games.
• Will it work in my laptop? Check clearance: at 3.5 mm with heatsink, it fits most desktops and the PS5, but some ultra-thin laptops require 2.3 mm or less. For thin laptops, the standard ON1000 (2 mm, single-sided) is the safer fit.

All OSCOO products come with a 3-year warranty.