A 7200 RPM drive consumes about 10-20 Watts, mostly from the 12V rail. A 5400 RPM drive consumes less. Please refer to the manufacturer product specifications for detailed power consumption charts. If you plan on using multiple 3.5" drives, please use the PW-200-M power supply.

Peak power consumption is only 5 Watts with an average power consumption of 2.5 watts. All our DC-DC adapters can handle laptop (2.5") drives.

Depending on CD-ROM type, your unit can consume anywhere from 5 W-20 watts. SlimCDs consume an average of 5 Watts. When not in use, the power consumption drops to 0.1 Watts.

Usually USB devices consume under 5 Watts, if more power is required by the device, an external adaptor is used.

Less than 0.5 Watts. CF disk are ideal for embedded applications.

Depending on model and type, the power consumption is around 12 watts.

Standard ATX power supplies have several power rails, used by various components. Our DC-DC converters take 12V in and produce several ATX compliant voltages as follows:

Rail	Circuit Type	Board Type	Comments
12V	3.5", 5.25 motors, fans, P4 power	mostly P4 boards (lots of power), FET drive on all boards (little power).	Use PW-120/200  when using 3.5" drives or P4s
5V	General M/B and disk circuitry, Memory, laptop drive motors	All Boards	All our DC-DC converters have adequate power on this rail
3.3V	CPU core, Memory	EPIA-5000, 800, V, M-10000, CL, EPIA-MS,  etc	All our DC-DC converters have adequate power on this rail
-12V	Some older serial comm. chipsets	EPIA-M, EPIA-M2 (EPIA-5000/800/V does not use the -12V for serial ports)	Check the serial driver chipset. Modern serial chipsets do not use the -12V rail.
-5V	Obsolete	NONE	Removed per ATC12V power supply guideline. Used only by ISA cards
+5SB	Memory, vital sleep functions	ALL	Uses little power

In most cases, it will work without any problems. If you need more power, you can get the 20-pin to 24-pin adapter or our 24-pin ATX power supplies (M4-ATX and the picoPSU-150-XT).