Enterprise SSD 1.92TB: SATA, SAS or NVMe, Part Numbers, Endurance and UK Prices

Enterprise SSD 1.92 TB: the drives at this size

1.92TB is a step that many enterprise lines share, from SATA drives in a 2.5-inch body to SAS drives and NVMe drives in U.2 and M.2. The grid below sets out what each maker's document says about its 1.92TB SATA and NVMe models; the SAS drives have their own section further down.

Start from the bay. A 2.5-inch SATA bay, a SAS bay, a U.2 NVMe bay and an M.2 slot are different connections, and each drive fits only one of them. Then compare endurance within the interface you have.

1.92TB SSD SATA: Samsung PM893 and Kingston DC600M

Samsung's PM893 sheet offers the drive from 240GB to 7.68TB, with the 1.92TB model listed as MZ-7L31T900, part number MZ7L31T9HBLT-00W07. Its warranty TBW at that size is 3,504TB. On our arithmetic, that is 1.92TB written once a day for five years of 365 days, so the PM893 at 1.92TB sits at one drive write a day.

Kingston's DC600M sheet lists 1.92TB in its 2.5-inch SATA range, which runs from 480GB to 7.68TB and is aimed at mixed use. The 1.92TB is SEDC600M/1920G, or SEDC600ME/1920G with encryption, at 560 MB/s sequential read and 530 MB/s write, rated 3,504TB at 1 DWPD for 5 years: the same endurance figure as the PM893. The Kingston DC600M and Samsung PM893 pages print each drive's full sheet.

1.92TB SSD SAS: Samsung PM1643, WD SS530 and KIOXIA PM7-R

Three SAS drives list 1.92TB. Samsung's PM1643 brochure gives capacities from 960GB to 30.72TB on a 12 Gbps SAS host interface. WD's Ultrastar DC SS530 sheet puts 1.92TB in its 1 drive-write-a-day class, on SAS 6/12Gb/s. KIOXIA's PM7-R, an enterprise SAS read-intensive drive, lists four 1.92TB models: base KPM71RUG1T92, SIE KPM7XRUG1T92, SED KPM7VRUG1T92 and FIPS SED KPM7WRUG1T92.

A SAS drive needs a SAS bay and controller. If a 1.92TB SAS listing is on sale, it appears in the table below with its interface shown. The SAS SSD page goes through SAS generations and part numbers.

Samsung enterprise SSD 1.92 TB and other NVMe drives

Samsung's PM9A3 data sheet lists the U.2 model at 1.92TB, shown as 1,920GB, as MZ-QL21T900, part number MZQL21T9HCJR-00W07. The PM9A3 brief also lists 1.92TB in its M.2 version, 22 x 110 x 4 mm, at up to 8 W read and write. So a Samsung enterprise SSD at 1.92TB can be the SATA PM893, the SAS PM1643 or the NVMe PM9A3, and the part number tells you which.

Micron's 7450 PRO in M.2 is read-intensive at 1 drive write per day and comes at 1.92TB. Solidigm's D7-P5520 starts its U.2 15 mm range at 1.92TB, at up to 1 DWPD over 5 years. KIOXIA's CM7-R, a PCIe 5.0 drive rated at 1 DWPD, also starts at 1,920GB, and its brief gives that size 22 W typical active power against 25 W at every larger size.

Where the makers rate endurance at this size, the answer is the same: about one drive write a day for the PM893, DC600M, 7450 PRO, D7-P5520 and CM7-R, which is roughly 1.92 TB written each day on our arithmetic. If you need more writes than that, a drive with a higher DWPD rating, or a larger drive at the same rating, raises the daily figure; check the rating on the sheet rather than the line name.

1.92TB SSD labels: decimal gigabytes and part-number codes

Samsung defines 1GB as 1,000,000,000 bytes, by the IDEMA convention, and says usable capacity may be less than the labelled figure. On that definition 1.92TB is 1,920,000,000,000 bytes, our arithmetic. We have not found a document explaining why makers choose 1.92TB rather than 2TB, so we offer no reason.

In Micron's part numbers, 1T9 means 1.92TB, and the Samsung strings on this page carry the same characters, MZQL21T9 and MZ7L31T9, though we have not found a Samsung key that defines them. Other makers write the size differently: Kingston uses 1920G and KIOXIA 1T92. So check each maker's own list rather than relying on one code.

Enterprise SSD 1.92 TB price on Amazon.co.uk

The table holds 2 listings right now. Lowest price per TB in it: £883.12/TB. Prices are pounds sterling inc VAT, sorted per TB, and each row shows its condition. The table takes enterprise SSDs we record at 1.92TB, whatever the interface.

A few 1.92TB listings print their size only in the title, so a drive can be on sale without showing here. Before you press Buy on Amazon, check the interface and form factor in the title against your bay, and match the part number to the strings above. The 3.84TB SSD page covers the next size up.

In-stock alternatives

None of these is the product this page covers: they are what is in stock on Amazon.co.uk beside it right now. Each row says why it is listed. Check the interface, form factor and part number against your system before buying.