Samsung PM9A1 512GB PCI Express NVMe 4.0 x4 M.2 2280 M.2 2280 Enterprise Solid State Drive

Where the PM9A1 512GB is deployed

• Read-heavy tiers: dataset staging, repositories and boot volumes
• Capacity expansion into free M.2 2280 M.2 2280 bays
• Like-for-like replacement and spares holding for deployed fleets
• New build-outs standardised on PCI Express NVMe 4.0 x4

Questions buyers ask about this part

Will the 512GB PM9A1 fit my server?

This is a M.2 2280 M.2 2280 part on PCI Express NVMe 4.0 x4. It fits any bay wired for PCI Express NVMe 4.0 x4. Send us your server model and we will confirm backplane support, firmware level and any bracket or caddy required before you order — that check is part of every order we ship.

What is the endurance rating on the 512GB?

0.7 DWPD. Across 512GB of capacity that is approximately 654 TB of total writes over a five-year term, calculated from the drive-writes-per-day rating. Compare that against your workload's measured daily write volume: if you are writing more than 0.4TB a day to a single drive, ask us about the mixed-use alternatives instead.

Should I take the 512GB or the 1TB?

They are the same drive with different capacity: identical PCI Express NVMe 4.0 x4, M.2 2280 M.2 2280 and endurance rating. The 1TB gives you 2.0x the capacity per bay. Where bays are the constraint — a full backplane, or a rack you cannot grow — the larger capacity is usually cheaper per usable terabyte once you count the chassis it saves. Ask us for both on one quote and compare.

How fast is the 512GB PM9A1?

Up to 6,800 MB/s sequential read and up to 4,200 MB/s sequential write, which is what PCI Express NVMe 4.0 x4 allows. Sustained figures under a real mixed workload land lower than the sequential headline — tell us your access pattern and queue depth and we will tell you what to expect rather than quoting the datasheet at you.

Is this Samsung part genuine, and is the warranty intact?

Yes. We supply through authorized distribution only, so the part carries the full Samsung manufacturer warranty and its firmware update path stays supported. No grey-market stock, no re-labelled drives, no voided warranties.

Do you offer volume pricing and accept purchase orders?

The listed price is per unit and indicative; tiered pricing applies at quantity. We accept purchase orders from qualified businesses, government and defence agencies, and educational institutions, with net terms and consolidated invoicing available. Email the quantity you need and we will come back within 48 business hours.