The promise of SSDs that take advantage of the PCIe 4.0 interface is staggering: achieving transfer speeds of around 7,000MB / s will be the norm and will make today’s PCIe 3.0 SSDs bite the dust. Or maybe not.
That is precisely what Western Digital is proposing , a manufacturer that has just released an ingenious drive called the WD Black AN1500 that is actually two SSDs working together in RAID 0 . The trick could work, because according to this manufacturer transfer rates of 6,500 MB / s are achieved.
The trick is in the RAID 0 configuration
This SSD unit is different as soon as you see it: it does not adopt the format of M.2 units, and instead of that it makes use of a conventional PCIe 3.0 x8 card that is “punctured” to the motherboard as we would with a graphics card or a card. sound, for example.
The idea is to offer the advantages of PCIe 4.0 units to computers that do not have this type of connection and have PCIe 3.0 slots. It’s a unique way to “extend the life” of our current PCs without giving up taking another step in the performance of our storage systems, and the idea makes sense.
The trick is in the use of two WD SN550 units that do use the M.2 format but are integrated into that PCIe 3.0 board. These units are configured in RAID 0 (‘Data Strippping’) , a system that allows combining storage units in a very special way: it distributes the reads and writes in the two units evenly to achieve that the performance is greatly improved since those reads and writes are done concurrently. It’s almost like doubling the performance of a single unit.
That allows these drives to achieve maximum transfer rates that can reach 6,500 MB / s in reads and 4,100 MB / s in sequential writes according to WD.
In addition to these performances, these units have a design that highlights the heatsink and a small strip that allows you to enjoy customizable RGB backlighting .
Price and availability of the WD BLACK AN1500
The new WD BLACK AN1500 drives are now available in 1TB, 2TB and 4TB models , and carry a 5-year warranty.