Digital storage manufacturer Western Digital has started shipping its Black SN770 series. The SN770 series comes as a successor to the last generation SN750 series of NVMe SSDs. The new series features the PCIe4 x4 interface for maximum read and write rates of 5150MB/s and 4850MB/s, respectively, compared to “only” ~3500 MB/s o the fastest PCIe3 x4 drives.

Faster PCIe4 x4 drives like Acer Predator GM7000 or ADATA Gammix S70 are available with transfer rates nearly 7000+ MB/s each to be noticeably faster than what the SN770 series delivers. However, such drives are also more costly at $150 and $145 for the 1TB ADATA and 1TB Acer, respectively, compared to just $139 for the 1TB Western Digital SN770.