Western Digital Launches the WD Black SN770 DRAM-less NVMe SSD

Western Digital has expanded its WD Black series of SSDs with yet another model today and the SN770 seems like yet another dilution of the Black brand, as it’s WD’s second DRAM-less Black series drive. On the upside, capacities range from 256 GB to 2 TB, unlike the SN750 SE which tops out at 1 TB and sequential speeds are also up, with read speeds rated at up to 5150 MB/s and write speeds of up to 4900 MB/s. This is still a far cry from the SN850, which should be considered the only high-end consumer SSD from WD at the moment.

WD did also provide some random performance numbers in the shape of up to 740K IOPS read and 800K IOPS write, which should make this one of the fastest DRAM-less SSDs currently on the market. WD claims the SN770 is 20 percent more power efficient than the SN750 SE, without providing any further details. WD provides a five year warranty for all SKUs and have rated the drives at a 1.75 million hour MTTF time, with the 1 TB SKU having a 600 TBW or 0.33 DWPD write endurance rating. Pricing starts at US$59.99 for the 250 GB SKU, with the 500 GB SKU coming in at US$79.99, the 1 TB at US$129.99 and the 2 TB at US$269.99. This places the 1 TB SKU at US$30 less than the SN850 and the same amount more than the SN750 SE. The SN770 is available as of today.