Specifications, Pricing, and Availability
Plextor offers the M6e in three capacity sizes: 128GB, 256GB, and 512GB. Today, we're looking at the mid capacity size, 256GB. This capacity size delivers up to 770 MB/s sequential read and 580 MB/s sequential write performance. The larger capacity size reads sequential data at the same rate, but the sequential write speed increases to 625 MB/s.
IOPS performance for the two largest capacity sizes tops at 105,000 4K read IOPS and 100,000 4K write IOPS. The 128GB model shares the same sequential read performance, but the sequential writes drop to just 335 MB/s and 83,000 4K write IOPS.
PCIe based M.2 storage still uses the AHCI driver built into Windows, so installation is smooth on Windows just like using a standard SATA drive. Unlike SATA where we're constrained to roughly 550 MB/s, the M6e allows for even higher performance.
As mentioned in the introduction, the M6e doesn't have a US presence yet. We did find the drive available in Asia already. The closest we could find to the US was in Singapore. A company called Video-Pro lists the M6e 128GB and 256GB for sale, but the Singapore Dollar doesn't equate to the US Dollar.
We expect Plextor to have units at Newegg and other etailers any day now. The M6e drives should sell for a premium, but we never received MSRP information. Plextor covers the M6e with a 5-year warranty.