The Yamaha PW800W is extremely compact and lightweight (3U, 10kg). Thanks to its high efficiency, the low speed cooling fans are extremely quiet. PW800W can be added as a redundant power supply for CL Series or M7CL. When using with PM5D, two units can be serially connected to achieve failsafe operation. PW800W accepts 100 - 240 volts so it can be used anywhere.