The RD-65B is a 68W AC/DC Enclosed switching power supply featuring Constant voltage mode output for 2 channels. RD-65B has input voltage operation range from 88 to 264VAC. Voltage output is adjustable for channel 1 from 4.75 to 5.5V and output current range from .3 to 8A- .2 to 3A for 2 channels with rated currents of 4A-2A. Thanks to the high efficiency up to 78%, it is able of operating from -25 to +70 ℃ case temperature under free air convection. RD-65B uses a LED indicator for power on with all channels using 105°C long life electrolytic capacitors makes it withstands 5G vibration test. The RD-65B has a 3 years factory warranty.