IBM ST91000640NS 500GB 7200RPM 2.5" SATA internal hard drive

IBM 500GB 7200RPM SATA drive

This IBM ST91000640NS is a 2.5-inch internal hard drive with a 500GB capacity and a 7200RPM spindle speed. It connects via a SATA 6Gbps interface and includes a System X caddy for installation in compatible bays. The drive is supplied in new condition and weighs 1.0 pound. It is designed for desktop or server storage applications.

Suits capacity-focused builds not speed-critical

This drive suits users who need affordable bulk storage on a SATA interface where mechanical latency is acceptable. It is not for builders who need the low access times or high throughput of solid-state media for operating system drives or active workloads. Buyers requiring larger single-drive capacities should look at higher-capacity models.

SATA 6Gbps interface determines host compatibility

The single specification that decides fit is the SATA 6Gbps interface, which requires a matching host controller and backplane to operate at full bandwidth. Verify that the target system provides a 2.5-inch bay with SATA power and data connections before purchase. The included caddy fits System X chassis; other enclosures may need a different mounting adapter.