Gigabyte P550SS Power Supply - PCIe 5.0, 80 PLUS Silver

550 W · 80+ Silver · Non-modular

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Wattage 550 W
Efficiency 80+ Silver
Modular Non-modular
Form factor ATX

Gigabyte P550SS Power Supply - PCIe 5.0, 80 PLUS Silver is a 550 W power supply rated 80+ Silver (non-modular). Pick one with some headroom above your build's draw. It came out in 2025.

Released: 2025-02-12

Specifications

Key specs

Wattage: 550 W
Efficiency: 80+ Silver
Modular: Non-modular
Form factor: ATX
Released: 2025-02-12
Part number: GP-P550SS EU
EAN / UPC: 4719331554187

Power

Total power: 550 W
AC input voltage: 155-240 V
AC input frequency: 50/60 Hz
Input current: 6.3 A
Power Factor Correction (PFC) type: Active
Combined power (+3.3V): 100 W
Combined power (+12V): 549.6 W
Combined power (+5V): 100 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 15 W
Max output current (+3.3V): 20 A
Max output current (+12V): 45.8 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 3 A
Hold time: 16 ms
Efficiency: 90%
Power Good signal delay range: 100 - 150 ms
Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector: 20+4 pin ATX
Motherboard power cable length: 60 cm
Number of SATA power connectors: 5
Peripheral (Molex) power connectors (4-pin): 4
PCI Express power connectors (6+2 pin): 2
CPU power connector (4+4 pin): Yes
ATX power connector (20+4 pin): Yes
Floppy drive power connector: 2
Floppy disk drive connector: Yes
PCI Express connector: Yes
Cabling type: Non-Modular

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Performance

80 PLUS certification: 80 PLUS Silver
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 3.1
Bearing technology: Ball bearing
Mean time between failures (MTBF): 100000 h

Design

Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
Fan location: Top
On/off switch: Yes

Weight & dimensions

Width: 140 mm
Depth: 150 mm
Height: 86 mm
Weight: 1.86 kg

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About this product

Ensure reliable and efficient power delivery with GIGABYTE power supplies. Designed for peak performance and durability, our PSUs offer stable and consistent energy to power your high-performance systems. With advanced protections and high-quality components, GIGABYTE power supplies provide the confidence you need for seamless, uninterrupted computing experiences.

P550SS Power Supply - PCIe 5.0, 80 PLUS Silver, 120mm Fan, ATX 3.0 compatible, EU Plug vs similar power supplies

	Gigabyte P550SS Power Supply - PCIe 5.0, 80 PLUS Silver	Gigabyte P550SS ICE Power Supply PCIe 5.0, 80 PLUS Silver	Gigabyte P650SS ICE Power Supply - PCIe 5.0, 80 PLUS Silver	Gigabyte P550SS 550W Power Supply
Wattage	550 W	550 W	650 W	550 W
Efficiency	80+ Silver	80+ Silver	80+ Silver	80+ Bronze
Modular	Non-modular	Non-modular	Non-modular	Non-modular
Form factor	ATX	ATX	ATX	ATX
Released	2025	2025	2025	2024