15.36 TB SSD: NVMe and SAS Options, TLC or QLC, and the SATA Question

15.36 TB SSD and NVMe SSD price on Amazon.co.uk

The table lists any 15.36 TB enterprise SSD offers we track on Amazon.co.uk, lowest £/TB first. It holds 2 listings right now. Lowest £/TB among tracked offers at the last check: £919.42/TB. Figures are pounds sterling inc VAT.

The row count is what our tracked listings showed at the last check and says nothing about what exists at this size. Rows may name models we hold no document for, and those titles are the seller's wording. At this capacity a wrong interface is a costly mistake, so the Interface and Part number columns come before the price.

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.

15.36 TB SSD SATA: none in the three documents we read

Samsung's PM893 data sheet lists capacities up to 7.68 TB. Micron's 5400 specification stops at 7,680 GB for the PRO and 3,840 GB for the MAX. The Intel D3-S4520 brief hosted by Solidigm ends at 7.68 TB, and gives >1 DWPD, up to 36.5 PBW, stated for the family and not mapped to a capacity. None of the three shows 15.36 TB.

That is the whole of our SATA evidence, and it covers three families. We have not found a SATA document listing 15.36 TB, which is not the same as proving no such drive exists. If a table row shows SATA at this size, read the full title and find the maker's sheet before trusting the column. The last SATA step we can document is on 7.68 TB SSDs.

Samsung 15.36 TB SSD: two PM9A3 documents against one

Samsung's three PM9A3 documents do not line up at this size. The product brief lists 15.36 TB in its U.2 column, at up to 11 W read and 13.5 W write in a 7 mm body. The white paper says capacities run to 15.36 TB for U.2, and its comparison table sets that against 7.68 TB and below for the older PM983. The data sheet, Revision 1.0 of August 2022, has a capacity row that stops at 7.68 TB and a part-number table with no 15.36 TB row.

So we print no PM9A3 part number at 15.36 TB, because we have not found one. A listing that claims this size needs its part number read against Samsung's current documents. The family figure in the brief is 1.0 DWPD for five years. By the white paper, this size is U.2 only: M.2 stops at 3.84 TB and E1.S at 7.68 TB.

Samsung PM1743 at 15.36 TB: speeds by capacity

On this table 15.36 TB is the quickest PM1743 for writes, while reads flatten earlier: 7,500 sequential at all four sizes, and 1,700 KIOPS random from 3.84 TB up. The table labels its sequential figures Mbps and the chart beside it MB/s, so we repeat the numbers without choosing.

For a PCIe 5.0 host, the white paper's text gives up to 14,000 MB/s sequential read and 2,500K IOPS random read, then up to 7,100 MB/s sequential write and 360K IOPS random write. Its 1 DWPD line belongs to the Gen4 table, and we do not extend it to those figures. It also describes support for U.2 and U.3 in 2.5-inch, and an EDSFF model. We hold no PM1743 part number at this size.

15.36 TB NVMe SSD: Micron 9400 PRO beside KIOXIA CM7-R

At 15,360 GB, Micron's power table gives 128K sequential write of 20 W on average, above both the 7,680 GB drive's 15 W and the 30,720 GB drive's 17 W. Idle is 5 W at each. Micron adds that not all chart options can be combined into an offered product, so use the codes to read a number, not to build one.

Solidigm's D7-P5520 page describes a PCIe 4.0 SSD up to 15.36 TB, for standard endurance and read-intensive workloads, in a family spanning U.2, E1.L and E1.S. A July 2022 document hosted by Solidigm says that maximum arrived in the same 2.5-inch, 15 mm size that held 7.68 TB on the P5510. We have not found a TBW figure for it at this capacity.

TLC or QLC at 15.36 TB: Solidigm D5-P5430 beside the 1 DWPD drives

The TLC drives we can document here sit at about 1 DWPD. Micron's sheet says 3D TLC, and the 9400 PRO's 28,032 TB works out at 1.0 by our arithmetic, which is TBW divided by capacity and 1,825 days. KIOXIA's CM7-R is BiCS FLASH TLC and states 1 DWPD. Samsung's PM9A3 brief says V-NAND TLC at 1.0 DWPD.

Solidigm's D5-P5430 page describes a QLC SSD, lists 15.36 TB, and prints 'Up to 0.57 DWPD (8K RW) / Up to 31.93 PBW'. Those are 'up to' figures that the page does not map to this capacity. The workloads differ as well: 0.57 is labelled 8K RW, Micron's 1.0 is our arithmetic on 4K random, and KIOXIA's 1 DWPD names no workload. So we do not set 31.93 PBW against 28,032 TB, or 0.57 against 1, as if they described two 15.36 TB drives on one test.

KIOXIA defines one drive write per day as writing the drive to full capacity once a day for its specified lifetime. At this size that is 15.36 TB of writes a day. Set your own daily write volume against that figure before weighing the two classes.

15.36 TB or 12.8 TB: the mixed-use siblings and a code to watch

KIOXIA's mixed-use CM7-V tops out at 12,800 GB as KCMY1VUG12T8, rated 3 DWPD, so that is as near as the line comes to the 1 DWPD KCMY1RUG15T3. On Micron's chart the 12,800 GB capacity code is 12TB, with GJ for MAX, so a '12TB' inside a 9400 part number means the 12.8 TB drive and not a 12 TB one.

These matches go by capacity and endurance class as printed. We have not found a document saying the pairs share NAND.

15.36 TB SSD SAS: the PM1643 and PM7-R side by side

The PM1643 brochure also gives 13.5 W active and 5 W idle for the family. It is the only PM1643 document we have read, and no PM1643a sheet stands behind this section.