Samsung 990 Pro M.2 PCIe 4.0 SSD 4TB w/ Heatsink

SATA 6Gb/sec, 256GB, 2.5″ Internal Solid State Drive. Up to 560MB/s Read, Up to 520MB/s Write, 3D TLC NAND Flash, 47.5g, 69.85×100.45×7
Max 200TBW

M.2 NVMe, 960GB Capacity. 3400MB/s Read, 2700MB/s Write, 1665 TBW, BiCS3 TLC Flash.

Supports Error Correction Code, Wear Leveling, Bad Block Management, Power Loss Protection, Over-Provision, and Thermal Throttling.