Gigabyte P550B 550W Power Supply 80 Plus Bronze (GP-P550B)

In stock - est. delivery in 1-2 days
Key Specifications
  • 550W Power Supply

  • 80 PLUS Bronze

  • Non Modular

  • 120mm Fan

Wattage: 550W

SKU:#054484 Warranty3 Years by Gigabyte Product No.:GP-P550B Short link: See specifications from the manufacturer

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.


3 Years by Gigabyte


Total power550 W
AC input voltage100 - 240 V
AC input frequency50/60 Hz
Input current8 - 4 A
Power factor0.9
Power Factor Correction (PFC) typeActive
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 time16 ms
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector20+4 pin ATX
Peripheral (Molex) power connectors (4-pin)3
Motherboard power cable length55 cm
Number of SATA power connectors6
SATA power cable length500 mm
Peripheral (Molex) power cable length500 mm
PCI Express power connectors (6+2 pin)2
PCI Express power cable length55 cm
CPU power connector (4+4 pin)Y
CPU power cable length60 cm
ATX power connector (20+4 pin)Y
Floppy drive power connector1
Floppy disk drive connectorY
PCI Express connectorY


Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Bronze
ATX version2.31
Bearing technologyHDB
Mean time between failures (MTBF)100000 h


Product colourBlack
Cooling typeActive
Fan diameter12 cm
Number of fans1 fan(s)
Fan locationTop
On/off switchY

Weight & dimensions

Width150 mm
Depth140 mm
Height86 mm