With great pleasure, HP announces the availability of the 159125-001 - HP 275-Watts Redundant Hot Swap Power Supply for ProLiant DL380 G1 Server. Even in the most demanding conditions, your ProLiant DL380 G1 server will receive dependable and effective power from this upgraded power supply. Since the 159125-001 power supply is hot-swappable, you can swap it out without shutting down your server. For crucial applications where downtime is intolerable, this makes it perfect. Because it has two separate power sources, the 159125-001 is also a redundant power supply. Your server will keep running even if one power source fails because the other will keep working.