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Gigabyte PS-Series P550SS

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Gigabyte PS-Series P550SS
202480+ Silver
550 W
24+8 (4+4) pin
550 W
24+8 (4+4) pin
white
650 W
24+8+8(4+4) pin
650 W
24+8+8(4+4) pin
white
Main
Power550 W
Form factorATX
Specs
PFCactive
Efficiency90 %
Cooling systemactive
Fan size120 mm
Fan bearinghydrodynamic / Fluid Dynamic Bearing /
Certification80+ Silver
ATX12V version3
Power connectors
MB/CPU power supply24+8 (4+4) pin
SATA5
MOLEX3
PCIe 8pin (6+2)2
Cable systemnon-modular
Cable length
MB600 mm
CPU650 mm
SATA500 mm / 620/740 /
MOLEX740 mm / 860 /
PCIe600 mm
Max. power
+3.3V20 А
+5V20 А
+12V145.8 А
-12V0.3 А
+5Vsb3 А
+12V550 W
+3.3V +5V100 W
-12V3.6 W
+5Vsb15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionUVP, OCP, OTP
Dimensions (HxWxD)86x150x140 mm
Official Websitegigabyte.com
Added to E-CatalogAugust 2024
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Gigabyte 2026 - new arrivals, bestsellers, and the most relevant models Gigabyte.
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Gigabyte 4719331554187

Ensure reliable and efficient power delivery with GIGABYTE power supplies.Designed for peak performance and durability, our P... moreSUs 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.GIGABYTE P550SS Power Supply - PCIe 5.0, 80 PLUS Silver, 120mm Fan, ATX 3.0 compatible, EU Plug.Total power:550 W, AC input voltage:155-240 V, AC input frequency:50/60 Hz.Motherboard power connector:20+4 pin ATX, Motherboard power cable length:60 cm, Cabling type:Non-Modular.Purpose:PC, Power supply unit (PSU) form factor:ATX, 80 PLUS certification:80 PLUS Silver.Product colour:Black, Cooling type:Active, Fan diameter:12 cm.Width:140 mm, Depth:150 mm, Height:86 mm.80 PLUS Silver certified (230V EU) Support Intel ATX 3.0 standard (compatible with ATX 3.1) 120mm Fluid Dynamic Bearing (FDB) Fan Flat cable design Powerful single +12V rail OVP/OPP/SCP/UVP/OCP/OTP protection.
Tradeinn.com
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£36.99
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GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black GP-P550SS

80 PLUS Silver certified (230V EU). Support Intel ATX 3.0 standard. 120mm Fluid Dynamic Bearing (FDB) Fan. Flat cable design.... morePowerful single +12V rail. OVP/OPP/SCP/UVP/OCP/OTP protection. 80 PLUS. SILVER CERTIFIED. The 80 Plus Silver certification (230V EU) guarantees a 90% efficiency rate at a 50% load, resulting in reduced power wastage, diminished heat generation, and minimized fan noise.. Support Intel. ATX 3.0 standard. The P550SS can sustain up to 2x total power excursion. It is fully compatible with Intel PSDG (Power Supply Design Guide) ATX 3.0 standard which supports up to 200% power excursion, reaches 70% low load efficiency and complies with required power supply timing standards.. 120MM FLUID DYNAMIC. BEARING(FDB) FAN. High-performance Fluid Dynamic Bearing fan uses oil film shock absorption technology to effectively reduce noise, making it quieter than conventional sleeve fan and providing more than twice the lifespan. In addition, the fan will detect the current power usage and temperature, automatically adjust the fan speed to minimize the noise.. RELIABLE FLAT CABLE DESIGN. The utilization of flat cables minimizes clutter while enhancing the thermal performance of the chassis.. SINGLE +12V RAIL. The single +12V rail delivers optimal power output, stability, and hardware compatibility. This design not only simplifies power cable installation but also stands as the most effective choice for overclocking purposes.. PROTECTION. To guarantee the stable operation of your entire computer system under any circumstances, we have incorporated a range of protective features including OCP, OTP, OVP, OPP, UVP, and SCP. Moreover, we have obtained safety certifications from various countries to ensure the consistent and secure functioning of your system.. Power. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage. Hold time. 16 ms. Efficiency. 90%. Max output current (+5Vsb). 3 A. Max output current (-12V). 0.3 A. Max output current (+5V). 20 A. Max output current (+12V). 45.8 A. Max output current (+3.3V). 20 A. Combined power (+5Vsb). 15 W. Combined power (-12V). 3.6 W. Combined power (+5V). 200 W. Combined power (+12V). 549.6 W. Combined power (+3.3V). 100 W. Power Factor Correction (PFC) type. Active. Power factor. 0.9. Input current. 6.3 A. AC input frequency. 50/60 Hz. AC input voltage. 155-240 V. Total power. 550 W. Ports & interfaces. Cabling type. Non-Modular. PCI Express connector. Yes. Floppy drive power connector. 1. Floppy disk drive connector. Yes. ATX power connector (20+4 pin). Yes. CPU power cable length. 60 cm. CPU power connector (4+4 pin). Yes. PCI Express power cable length. 50 cm. PCI Express power connectors (6+2 pin). 2. Peripheral (Molex) power cable length. 500 mm. Peripheral (Molex) power connectors (4-pin). 3. SATA power cable length. 500 mm. Number of SATA power connectors. 5. Motherboard power cable length. 60 cm. Motherboard power connector. 20+4 pin ATX.
Backtotheoffice.co.uk
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£46.99
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GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black GP-P550SS

GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black
LaptopHub.uk
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£50.27
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GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black GP-P550SS

80 PLUSSILVER CERTIFIEDThe 80 Plus Silver certification (230V EU) guarantees a 90% efficiency rate at a 50% load. resulting i... moren reduced power wastage. diminished heat generation. and minimized fan noise.Support IntelATX 3.0 standardThe P550SS can sustain up to 2x total power excursion. It is fully compatible with Intel PSDG (Power Supply Design Guide) ATX 3.0 standard which supports up to 200% power excursion. reaches 70% low load efficiency and complies with required power supply timing standards.120MM FLUID DYNAMICBEARING(FDB) FANHigh-performance Fluid Dynamic Bearing fan uses oil film shock absorption technology to effectively reduce noise. making it quieter than conventional sleeve fan and providing more than twice the lifespan. In addition. the fan will detect the current power usage and temperature. automatically adjust the fan speed to minimize the noise.RELIABLE FLAT CABLE DESIGNThe utilization of flat cables minimizes clutter while enhancing the thermal performance of the chassis.SINGLE +12V RAILThe single +12V rail delivers optimal power output. stability. and hardware compatibility. This design not only simplifies power cable installation but also stands as the most effective choice for overclocking purposes.PROTECTIONTo guarantee the stable operation of your entire computer system under any circumstances. we have incorporated a range of protective features including OCP. OTP. OVP. OPP. UVP. and SCP. Moreover. we have obtained safety certifications from various countries to ensure the consistent and secure functioning of your system. GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black
Gamingkit.co.uk
Delivery: in United Kingdom
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£51.28
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GIGABYTE P550SS power supply unit 550 W 20+4 pin ATX ATX Black GP-P550SS

80 PLUS SILVER CERTIFIED The 80 Plus Silver certification (230V EU) guarantees a 90% efficiency rate at a 50% load resultin... moreg in reduced power wastage diminished heat generation and minimized fan noise. Support Intel ATX 3.0 standard The P550SS can sustain up to 2x total power excursion. It is fully compatible with Intel PSDG (Power Supply Design Guide) ATX 3.0 standard which supports up to 200% power excursion reaches 70% low load efficiency and complies with required power supply timing standards. 120MM FLUID DYNAMIC BEARING(FDB) FAN High-performance Fluid Dynamic Bearing fan uses oil film shock absorption technology to effectively reduce noise making it quieter than conventional sleeve fan and providing more than twice the lifespan. In addition the fan will detect the current power usage and temperature automatically adjust the fan speed to minimize the noise. RELIABLE FLAT CABLE DESIGN The utilization of flat cables minimizes clutter while enhancing the thermal performance of the chassis. SINGLE +12V RAIL The single +12V rail delivers optimal power output stability and hardware compatibility. This design not only simplifies power cable installation but also stands as the most effective choice for overclocking purposes. PROTECTION To guarantee the stable operation of your entire computer system under any circumstances we have incorporated a range of protective features including OCP OTP OVP OPP UVP and SCP. Moreover we have obtained safety certifications from various countries to ensure the consistent and secure functioning of your system.
Quzo.co.uk
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£51.84
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Model overview based on user reviews  
The Gigabyte PS-Series, particularly the P650SS model, is praised for its quiet cooling and minimal voltage deviations under load, making it a reliable choice for mid-range PCs. Users appreciate its long PCI-E and CPU power cables, which provide ample headroom for setups like the Ryzen 5 5600 and RX5700XT. The PSU is noted for its 80+ Silver certification and five-year warranty, offering good value for money. However, some users find the motherboard power cable excessively fragmented, which complicates installation. Despite concerns about the capacitors, the unit's performance and price make it a treasure for many. The P650SS ICE variant is highlighted for its white design and Japanese capacitors, although the flat cables can be inconvenient to manage. Overall, the Gigabyte PS-Series offers a strong price/quality ratio, especially appealing before potential price increases.
Pros

Cons

User reviews 5
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5
Silver 80 with a five-year warranty, quiet cooling for a reliable mid-range PC
28 February 2025 
Purchased as a replacement for the deceased Gamemax 700 W. It's ample for a setup with a Ryzen 5 5600 + Gigabyte Aorus RX5700XT + 4 case fans. The power supply cooling operates extremely quietly, in my case quieter than the case fans. During stress tests under load, the deviations in the lines are minimal. Overall, 650 W is still enough even in 2025)) This unit at such a price is a treasure. During installation, I spent more time untangling the ATX power spaghetti for the motherboard, they could have made a single ribbon already)

System consumption during benchmark:
CPU 77.89 W
GPU 178.98 W (PPT Limit 220 W)
- quiet cooling
- minimal voltage deviations on lines under load
- R5 5600 + RX5700XT is more than enough
- long PCIe and processor power cables
- excessively fragmented power cable of the motherboard
- more downsides and none
Sergey Sh: use Gigabyte P650SS less than month
Discuss
 Show Original
excellent model, I really liked it
26 March 2026 
At the moment, this model on the market combines price, power, and build quality very well. Yes, the certification is only 80+ Silver, but the price is lower too. The efficiency is about 90%, which is enough for everyday use. The cooling operates very quietly, almost inaudibly. In tests under various loads, it maintains voltage excellently, with no drops, providing stable operation. The cables are long and sturdy, but this is also a downside, as neat cable management becomes a challenge. Plus, the power supply is non-modular, making it difficult to tuck away unused cables for storage in the case.
price, certificate 80+ Silver
non-modular system, rigid wires for installation
Vladimir I: use Gigabyte P650SS less than month
Discuss
 Show Original
Silver 80 with a five-year warranty, quiet cooling for a reliable mid-range PC
28 February 2025 
Replaced a deceased Gamemax 700W with this. It's more than enough for a combo of Ryzen 5 5600 + Gigabyte Aorus RX5700XT + 4 case fans. The PSU fan runs extremely quietly, quieter than the case fans in my situation. During stress tests under load, deviations on the lines were minimal. Overall, 650W is still enough even in 2025)) this model for such a price is a gem. Took longer to untangle the ATX power cables for the motherboard during installation, they could have made a single braided cable by now.)

System consumption during benchmark:
CPU 77.89W
GPU 178.98W (PPT Limit 220W)
- quiet cooling
- minimal voltage deviations on lines under load
- R5 5600 + RX5700XT has plenty of headroom
- long PCIe and CPU power cables
- overly fragmented power cable for the motherboard
- more cons and nothing else
Sergey Sh: use Gigabyte P650SS less than month
Discuss
 Show Original
3 out of 5 user review(s) shown
2 more user review(s)

Gigabyte PS-Series configurations

Price for Gigabyte PS-Series
Gigabyte PS-Series P550SSfrom £36.995 offers
Gigabyte PS-Series P550SS ICEfrom £38.991 offer
Gigabyte PS-Series P650SSfrom £39.992 offers
Gigabyte PS-Series P650SS ICEfrom £39.992 offers
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