Gigabyte P-Series 2020 P550B
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Gigabyte P-Series 2020 P550B 450 W 24+8 (4+4) pin 80+ Bronze 550 W 24+8 (4+4) pin 80+ Bronze 750 W 24+8+8(4+4) pin 80+ Gold 850 W 24+8+8(4+4) pin 80+ Gold | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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.
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 GP-P550B | £38.99 |  | |||
Gigabyte P550B power supply unit 550 W 20+4 pin ATX ATX Black | £65.75 |  | |||
Gigabyte P550B power supply unit 550 W 20+4 pin ATX ATX Black GP-P550B | £65.75 |  | |||
| £67.07 |  | ||||
Model overview based on user reviews
The Gigabyte P-Series 2020 power supply units have received mixed reviews from users. Many appreciate the quiet operation and the availability of long, flexible cables, making them suitable for various setups. The units are noted for their stability under load and the presence of essential protection systems. However, some users have reported issues such as loud squeaking under heavy load and unattractive cable management. The P1000GM model, in particular, has faced criticism for whistling noises and poor warranty service, especially in Ukraine. While some users find the units reliable and well-performing, others suggest opting for more established brands due to these concerns.
Pros
Cons
3 0 2 4 |
I bought the PSU in November 2020, version P750GM. I got it for a system with an R7 5800X and an RTX 3080. 1. Handles the system. 2. The fan is very quiet. I thought it wasn't working, but placing my hand by the rear of the unit while gaming confirmed everything was fine. Even if it was loud, against the backdrop of the 3080 running at full speed and the Be Quiet Dark Rock Pro 4 CPU cooler, it still wouldn’t be heard. I don’t hear any other extra noises or crackling. 3. Rich set of cables. The cables themselves are thin, long enough, and flexible enough to be routed through the Cooler Master MB510L case as I wanted. 4. The unit is quite heavy. And as Boris the Blade said, "Heavy is reliable." translation: 1. For 2-3 weeks, there was a persistent "new" item smell from the unit. This was also during use in the old system with an i7 2600K and GTX 1066. Now, there has been no smell for a long time (surely the corona couldn't last more than half a year?).  Sergey Prechislyy: use Gigabyte P750GM few months |
The budget novelty of 2020 from GIGABYTE, introduced in June, I really liked it among budget options. I was choosing for a long time between Chieftec Proton, Be quiet System Power 9, or Gigabyte P-Series 2020 but eventually settled on GIGABYTE. Chieftec and Be quiet have been on the market since 2017-2018 and have gathered a lot of reviews over this period, some say the fan is noisy and others that the capacitors crack, etc. I have doubts about this, and I think all models are good. But I decided to try something new, and besides, this one is a bit cheaper)) and you don't need much for assembling a work machine. Somehow this PSU is excellent for me. Nothing is noisy or cracking, genuinely quiet. The cables are black flat and very long, suitable for any case. For assembling a 10100+GTX 1660 SUPER, you can safely take it. quiet not detected Valeriy L.: use Gigabyte P450B less than month |
The P550B block pulls the Biostar B650MT, Ryzen 5 8400F, RX 7600 XT assembly normally. It was selected without fanaticism for a work computer. It withstands voltage drops in the network well. It survived frequent sudden power outages in the summer of 2024, and long-term operation from a Chinese inverter from 12V to 220V. There are all the main protection systems, the cables are long and flexible with a large supply of connectors. In work tasks at medium loads, it works quietly. Under heavy load, for example, in games, a fairly loud squeak appears at the beginning, and then disappears after a while.  Den: use Gigabyte P550B more than year |
3 out of 9 user review(s) shown
6 more user review(s)
Gigabyte P-Series 2020 configurations
| Price for Gigabyte P-Series 2020 | ||||
|---|---|---|---|---|
 | Gigabyte P-Series 2020 P450B | from £36.49 | 4 offers | |
 | Gigabyte P-Series 2020 P550B | from £38.99 | 4 offers | |
 | Gigabyte P-Series 2020 P750GM | from £82.99 | 4 offers | |
 | Gigabyte P-Series 2020 P850GM | from £69.99 | 2 offers | |
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