This is an SSD drive with a 256 GB storage capacity. The form factor is M.2 and it wirelessly connects the hard drive to the motherboard.
From Amazon
ADATA XPG SX8200 Pro 256GB M.2 Gaming Solid State Drive (SSD), black
Justop
Adata XPG SX8200 Pro (ASX8200PNP-256GT-C) 256GB M.2 2280 PCIe NVMe SSD, Read 3350MB/s, Write 1150MB/s, 5 Year Warranty
Compadvance
Adata 256Gb Xpg Sx8200