Artesyn DS450-3, 450 W, Single Output, 12V 37A Hot-Swap AC-DC Power Supply
10.3 W/in3 (DS550) 8.4 W/in3 (DS450). Active power factor correction. Fan fail tach output signal. No minimum load required. +12 Vdc output. Hot plug operation. Green LED status, power good/AC_OK status.