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Green printed circuit board with black controller and memory chips in M.2 2280 stick form factor

HP

HP PM9C1 512GB NVMe PCIe 4.0 x4 M.2 2280 internal SSD

SKU CH-Q98X-ZCATS MPN PM9C1

512 GB M.2 2280 NVMe SSD with PCIe 4.0 x4 interface delivering up to 4950 MB/s read and 2500 MB/s write speeds

  • Form FactorM.2 2280
  • Capacity512GB
  • InterfacePCI-Express 4.0 x4
  • Connector75 Pins
  • ControllerSamsung
  • Max Sequential ReadUp to 4950 MBps
  • Fast PCIe 4.0 x4 sequential read up to 4950 MBps
  • Strong sequential write up to 2500 MBps for large files
  • High random 4KB read up to 550000 IOPS for snappy OS
  • Samsung controller and NAND deliver OEM-grade reliability
  • Standard M.2 2280 75-pin fits laptops and desktops

Capacity and interface

This is a 512GB internal solid-state drive using the M.2 2280 form factor and a PCIe 4.0 x4 NVMe interface. It is built with Samsung NAND and controller for reliable daily workloads. The drive suits laptops, desktops, mini PCs and workstations needing a fast boot or primary storage device. Sequential speeds reach 4950 MBps read and 2500 MBps write.

Who should choose this drive

It fits users upgrading from a slower SATA SSD or adding responsive storage for operating systems, applications and everyday files. Sustained write performance drops to 28 MBps, so continuous heavy writes such as video capture or large database workloads will throttle. Buyers needing steady high sustained throughput should consider drives rated for that workload.

The specification that decides fit

The PCIe 4.0 x4 NVMe interface determines whether the host can use the rated 4950 MBps read and 2500 MBps write speeds. Systems limited to PCIe 3.0 or SATA will not reach these figures. Verify the motherboard or laptop slot supports PCIe 4.0 x4 NVMe before purchase.

Points forts

  • Fast PCIe 4.0 x4 sequential read up to 4950 MBps
  • Strong sequential write up to 2500 MBps for large files
  • High random 4KB read up to 550000 IOPS for snappy OS
  • Samsung controller and NAND deliver OEM-grade reliability
  • Standard M.2 2280 75-pin fits laptops and desktops

Caractéristiques

BrandHP
ModelHP
Form FactorM.2 2280
Capacity512GB
InterfacePCI-Express 4.0 x4
Connector75 Pins
ControllerSamsung
Max Sequential ReadUp to 4950 MBps
Max Sequential WriteUp to 2500 MBps
Sustained Sequential WriteUp to 28MBps
Sustained Random 4KB ReadUp to 550,000 IOPS
Sustained Random 4KB WriteUp to 550,000 IOPS
4KB Random ReadUp to 400,000 IOPS
Seek Time0.1 ms
Ready BoostYes

Questions sur cet article

Does my motherboard need an M.2 slot that accepts a 22 mm by 80 mm PCIe 4.0 x4 NVMe drive for this HP PM9C1 to work?

Yes, the drive uses the standard M.2 2280 form factor and requires an M.2 socket wired for PCIe 4.0 x4 NVMe signalling.

If I install this PM9C1 in a system that only supports PCIe 3.0 x4, will the drive still function?

The SSD is backward compatible and will operate at PCIe 3.0 x4 speeds, though sequential reads will be lower than the 4,950 MB/s ceiling.

After installation, how can I confirm the PM9C1 is running at its advertised PCIe 4.0 x4 link speed?

Check the negotiated link width and generation in your OS device manager or a tool such as CrystalDiskInfo; it should report PCIe 4.0 x4.

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