The RQ-125B is a 120W AC/DC Enclosed switching power supply featuring Constant voltage mode output for 4 channels. RQ-125B has 2 input voltage operation ranges selected by a switch from 88 to 132VAC and 176 to 264VAC. Voltage output is adjustable for channel 1 from 4.75 to 5.5V and output current range from 2 to 12A- .5 to 4.5A-.1 to 1A -0 to 1A for 4 channels with rated currents of 8A-2.5A-2A-.5A . Thanks to the high efficiency up to 79%, it is able of operating from -25 to +70 ℃ case temperature under free air convection. RQ-125B uses a LED indicator for power on with all channels using 105°C long life electrolytic capacitors makes it withstands 5G vibration test. The RQ-125B has a 3 years factory warranty.