Samsung PM9A3 1.92TB Gen4 M.2 SSD

Hard Drive

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Background on Solid State Drives

Solid-state drives (SSDs) store data electrically, rather than on magnetic disks like traditional hard drives (HDDs). This means there is virtually no delay when seeking a specific bit of data, and there is no physical limitation to how fast reading and writing of data can happen. Instead, the limits come down to the controller inside the drive, the speed at which the individual flash memory chips can transfer information, and the connection between the drive and the rest of the computer.

These drives are available in many physical forms: 2.5-inch (similar in size to laptop HDDs), PCI-Express (which slot into a system like a graphics card), and M.2 "sticks". The more traditionally shaped drives usually connect to motherboards via SATA, just like hard drives do, and that connection itself tends to be the limiting factor in their performance. M.2 drives can use either SATA or the much faster PCI-Express connection, depending on the drive itself and the motherboard it is installed in. There are also U.2 drives, which are close in size to the 2.5-inch models but use a much faster data connection; they are found more often in servers and datacenters than in desktop workstations.

Samsung's PM9A3 data center SSDs are built to handle both fast transfer speeds and high numbers of IOPS for smooth operation in even the most demanding workloads. These are available in multiple form factors and capacities, but this particular model is an M.2 drive with 1.92TB. It is rated for up to 6800 MB/s sequential read and 2700 MB/s sequential write speeds as well as 850K random read IOPS.

Model: Samsung MZ1L21T9HCLS-00A07