Samsung presents its first 61.44-TByte SSD
After Solidigm and WD, Samsung has presented a 61.44-TByte SSD. If you have a lot of money to spare, you can also use it in a desktop PC.
Samsung's BM1743 comes in a 2.5-inch housing; however, the U.2 connection is no longer available on desktop mainboards.
(Image: Samsung)
Samsung has presented its SSD with the highest storage capacity to date. The BM1743 comes with up to 61.44 TByte –, twice as much as Samsung's previous top models. The manufacturer is thus joining a select club: Until now, only the SK-Hynix subsidiary Solidigm (formerly Intel) has offered such an SSD. Western Digital has also announced a 64-TByte model.
In the BM1743, Samsung uses memory chips that store four bits per cell (Quadruple Level Cells, QLC), so-called V-NAND of the seventh generation. The predecessor BM1733 still used v5 chips. The new ones double the memory layers from 96 to 192, accompanied by an increase in memory density.
Initially, a U.2 version with PCI Express 4.0 connection will be released. With high read rates but poor write values, it is designed for data backup, for example in cloud data centers. The BM1743 achieves a sequential read rate of 7.2 GByte/s and a write rate of just 2 GByte/s. For random accesses, the manufacturer specifies 1.6 million IOPS reading and 110,000 IOPS writing. The latter value is barely better than that of SATA SSDs.
The five-year warranty covers 0.26 drive writes per day – which corresponds to a write volume of 29.15 petabytes over the entire period.
Can be used in desktop PCs via detours
The U.2 version uses a 15 mm high 2.5-inch housing. The U.2 connection has died out on desktop mainboards because M.2 plug-in cards have prevailed. In theory, interested parties could still use such a 61.44 TB SSD in a desktop PC: On Amazon, for example, there are adapters from M.2 to U.2 that loop through the four PCIe lanes.
Samsung does not give a recommended price for its BM1743, but at least 7000 euros seems realistic. Solidigm's D5-P5336 with 61.44 TByte capacity, for example, costs just under 7200 euros and therefore almost 117 euros per terabyte.
Samsung also wants to launch a BM1743 in the so-called E3.S ruler format for servers. It supports PCI Express 5.0 instead of PCIe 4.0, although the manufacturer does not specify any performance values. In the announcement, Samsung also holds out the prospect of 122.88 TB SSDs with its current QLC components, but does not provide any further details.
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