The MasterWatt is a 80 Plus Bronze Power supply with an innovative semi-fanless mode. Under 15% load, the MasterWatt fan remains idle, offering zero dBA. When demand for power increases, a gradual fan curve provides measured cooling with little to no noise at any output level. Dual forward / DC-to-DC topology are employed to keep the voltage stable in all conditions. For increased performance, MasterWatt is equipped with 16 AWG power cables, which reduce resistance thereby increasing efficiency.

Specifications

Product Name MasterWatt 550

Product Number MPX-5501-AMAAB

Type ATX 12V V2.4

PFC Active PFC

Operation Voltage 100-240 Vac

Input Voltage 100-240 Vac

Input Current 8-4 A

Input Frequency 50-60 Hz

Dimensions (LxBxH) 140 x 150 x 86 mm

Fan Size 120 mm

Fan Bearing LDB

Power Good Signal 100-500 ms

Hold Up Time 16ms at 80% load

Efficiency 85% @ Typical Load

ErP 2013 Lot 6 Yes