The product is a lot of 47 M.2 SSDs with various storage capacities ranging from 128GB to 512GB, from brands such as Samsung and SK Hynix. These internal SSDs are designed for use with laptops and feature low noise levels. The SSDs are of type M.2 interface and mSATA interface, with a cache size of 256MB. Ideal for those looking to upgrade their storage capacity with reliable and tested working SSDs.