The solid state drive was pulled from BRAND NEW laptops for upgrade purpose. The SSD has been wiped and formatted. It works with all brand laptops with a PCIe interface (SSD length 30mm). Capacity: 256GB Interface: PCIe Gen3 x4 Sequential Read up to (MB/s): 2,200 Sequential Write up to (MB/s): 900 Random Read up to (IOPS): 140K Random Write up to (IOPS): 190K