Gigabyte P550B power supply unit 550 W 20+4 pin ATX ATX Black

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550W, ATX 12V v2.31, 120mm fan, 150 x 140 x 86 mm, 100-500ms
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80 Plus Bronze certified 80 Plus Bronze certified ensures to deliver 85% efficiency at 50% load. The better power efficiency leads to less power waste, less heat and less fan noise Reliable Flat Cable P550B provides the best solution for the system builds. The flat cable reduces the clutter and improves the airflow in the case. 120mm Silent Hydraulic Bearing (HYB) Fan 120mm Silent Hydraulic Bearing fan optimizes the noise reduction and the thermal performance. The fan speed is adjusted according to the automatic power detection. The Hydraulic Bearing fan provides longer and more stable life time. SINGLE +12V RAIL Single +12V rail provides the best power output, stability and compatibility for the hardware. It provides the easiest way to install the power cable. And it is the best design for overclocking. PROTECTION In order to make sure the entire computer system to operate stably under any conditions, we not only added protection designs such as OCP, OTP, OVP, OPP, UVP and SCP, but also ensured the stable operation of your system through the safety certification of various countries.


  • Total power 550 W
  • AC input voltage 100 - 240 V
  • AC input frequency 50/60 Hz
  • Input current 8 - 4 A
  • Combined power (+3.3V) 108 W
  • Combined power (+12V) 522 W
  • Combined power (+5V) 108 W
  • Combined power (-12V) 3.6 W
  • Combined power (+5Vsb) 15 W
  • Max output current (+3.3V) 18 A
  • Max output current (+12V) 43.5 A
  • Max output current (+5V) 15 A
  • Max output current (-12V) 0.3 A
  • Max output current (+5Vsb) 3 A
  • Hold time 16 ms
  • Efficiency 85%
  • Power protection features Over power, Over voltage, Overcharge, Overheating, Short circuit, Under voltage
  • Motherboard power connector 20+4 pin ATX
  • Peripheral (Molex) power connectors (4-pin) 3
  • Motherboard power cable length 55 cm
  • Number of SATA power connectors 6
  • SATA power cable length 100,120,500 mm
  • Peripheral (Molex) power cable length 120,500 mm
  • PCI Express power connectors (6+2 pin) 2
  • CPU power connector (4+4 pin) Y
  • CPU power cable length 60 cm
  • Purpose PC
  • Power supply unit (PSU) form factor ATX
  • 80 PLUS certification 80 PLUS Bronze
  • ATX version 2.31
  • Mean time between failures (MTBF) 100000 h
  • Product colour Black
  • Cooling type Active
  • Fan diameter 12 cm
  • Number of fans 1 fan(s)
  • Fan location Top
  • Cables included CPU, PCIe, Peripheral (Molex), SATA
  • Width 140 mm
  • Depth 150 mm
  • Height 86 mm


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