Your server's running on a single PSU and you know what happens when it dies at 2am. This 550W Platinum hot-swap unit slots straight into your ThinkSystem SR530, SR550, SR570, SR590, SR630, SR650, ST250, or ST550 and gives you redundancy without pulling the chassis apart. Pull the failed unit, drop this in, reboot. Ten minutes, not a service call. If you're fitting a second supply for N+1 redundancy, both units must be identical — match your existing PSU before you order. 230V/115V dual-voltage means it handles either Australian mains or a 115V rack feed without a transformer
