The 500223-001 is compatible for G7 HP ProLiant servers that use 2.5" SAS/SATA hot-swap drives. The 378343-002 includes 4 mounting screws and has a LED power indicator to indicate the working status of the plugged in storage device. HP 2.5 inch Small Form Factor SAS/SATA tray carrier caddy that includes 4 screws and the durable blue bracket (or silver) for G5/G6/G7 HP ProLiant drives.
The G7 hot plug hard drive tray includes 4 mounting screws and has LED power indicators to indicate the working status of the plugged in hard drive. Hot pluggable drive trays allows you to plug in the drive into the server without having to power the server down.