This Micro ATX power supply is a 230W, PS3 Form Factor, six output unit energy star certification, UL, CSA, CB, TUV, NEMKO and CE approvals. Does not require 3 pin connector for board control of power supply fan. Airflow drawn out of case into surroundings by 80mm internal fan. Replacement product suitable for HP PC Computer Model# Media Center m470n, m480n, m490n, m495c, HP Computer Model# DQ171A, DQ171AR, DQ170A, DQ170AR, DQ172A, DQ172AR, DT068A, DT068AR. HP Power Supply part numbers 5187-4874, 5185-4875, 5187-4874-SPEC

Bestec Power Supply Model # : ATX-1953D
HiPro Power Supply Model #: HP-A2317F3
HP P/N 5187-4874
230 watts maximum output
Single ball bearing fan design
Built-in voltage overload protection
Voltage switch for 115/230V AC input
Support Intel "Pentium 4" and AMD "Athlon XP"
Complies with Intel SFX12V specification
Certified by UL, CB, CE, TUV, & FCC
This power unit has 4 Peripheral, 1 Floppy, 1 ATX connector, and 1 ATX12V connector