0N19X8 Dell 512GB Class 20 SATA 6Gbps 2.5-inch Internal Solid State Drive ( SSD)
SOLVED] What is the difference among Class 10, Class 20, and Class 40 SSDs? - Spiceworks
XPS 8940, M.2 NVMe slots? | DELL Technologies
Dell 2.5in SATA Class 20 Solid State Drive - 128GB | Dell USA
SOLVED: What Do The Different Classes of Solid State Disk (SSD) Mean | Up & Running Technologies, Tech How To's
8RCKR - Refurbished - DELL / MICRON 512GB TLC SATA III 2.5 INCH SMALL FORM FACTOR SFF CLASS 20 1300 SERIES TRIPLE LEVEL CELL NAND 6GB/S SATA3 READS 530MB/S WRITES 520MB/S SOLID
Dell M.2 SATA Class 20 2280 Laptop Solid State Drive - 256GB SSD | eBay