SAMSUNG PM991 256GB NVME PCIe GEN 3 X4 2230 SSD (Z11)

It is efficient and commonly used as a boot drive in pre-built systems. Capacities: 128GB, 256GB, 512GB, 1TB. Performance (256GB Model): Similar performance, popular in compact 2242 sizes. Form Factor: M.2 (Available in 2230, 2242, and 2280).