Best Power Supplies November 2026
Choosing the right power supply ensures stable performance and clean power delivery for your computer components. This independent guide lets you compare modular designs, wattage capacities, and efficiency ratings across top options. Find the ideal unit to match your system build and future upgrades.
Last updated: 1 November 2026
The list is unchanged since the last update.
Power Supplies: Top 5
1
Corsair RM850e (2025) ATX 3.1 Gold 850W
from £94.998 stores
from £94.99
8 stores
2
Asus TUF Gaming Gold 850W
from £99.999 stores
from £99.99
9 stores
3
Corsair RM750e (2025) ATX 3.1 750W
from £89.9911 stores
from £89.99
11 stores
4
MSI MAG A850GL PCIE5
from £87.2711 stores
from £87.27
11 stores
5
Corsair RM650e 2025 ATX 3.1 80+ Gold 650W
from £123.361 store
from £123.36
1 store
The Corsair RM850e 2025 delivers 850 W of power with modern ATX 3.1 compliance and 80 Plus Gold efficiency. It features a fully modular cable management system alongside a dedicated 12VHPWR connector for current graphics cards. A rifle-bearing 120 mm fan supports semi-passive cooling during lighter computer workloads.
Pros
Modern ATX 3.1 standard compliance
Dedicated 12VHPWR PCIe connector
Fully modular cable design
Semi-passive zero-RPM fan mode
80 Plus Gold certified efficiency
Cons
Reports of audible fan noise
Heavier unit at 2.93 kg
The Asus TUF Gaming Gold 850W offers 850 W of output with high 92 % electrical efficiency and an 80 Plus Gold rating. It incorporates a large 135 mm dual-ball bearing fan with semi-passive operation for low noise levels. Fully modular cables and a 12VHPWR connector make cable routing clean and modern graphics cards easy to hook up.
Applies until 6 Nov
£114.99
£99.99
In stock
Pros
High 92 % power efficiency
Quiet 135 mm dual-ball bearing fan
Dedicated 12VHPWR PCIe connector
Strong 70.8 A single 12V rail
Fully modular cabling
Cons
Follows older ATX 3.0 specification
Fewer SATA connectors than competitors
The Corsair RM750e 2025 provides 750 W of power with full ATX 3.1 support and 80 Plus Gold efficiency. Its compact depth of 86 mm ensures broad compatibility with smaller computer cases. Fully modular cables and semi-passive fan cooling deliver straightforward cable management and quiet everyday use.
Pros
Compact depth for easier case fitting
Modern ATX 3.1 standard compliance
Fully modular cable design
Dedicated 12VHPWR PCIe connector
Semi-passive cooling at low loads
Cons
750 W capacity limits extreme setups
Some user notes on clicking noises
The MSI MAG A850GL PCIE5 delivers 850 W with 80 Plus Gold certification and a strong 70.5 A 12V rail. It stands out with eight SATA connectors and a compact 140 mm depth that fits well in tight enclosures. A 120 mm liquid bearing fan ensures continuous cooling, paired with a dedicated 12VHPWR PCIe interface.
Applies until 3 Nov
£119.99
£89.99
In stock
Pros
High 8 SATA power connectors
Compact 140 mm depth
Dedicated 12VHPWR PCIe connector
Smooth liquid bearing 120 mm fan
Fully modular cable setup
Cons
No semi-passive fan mode listed
Follows ATX 3.0 standard rather than 3.1
The Corsair RM650e 2025 is a 650 W power supply built to the latest ATX 3.1 specification with 80 Plus Gold efficiency. It features a fully modular layout and a semi-passive fan mode that stops the fan under light system loads. The compact design makes it a reliable choice for budget-conscious and mainstream computer builds.
Pros
Modern ATX 3.1 standard compliance
Fully modular cable routing
Dedicated 12VHPWR PCIe connector
Semi-passive fan operation
Compact chassis dimensions
Cons
650 W ceiling limits top-tier GPUs
Fewer PCIe cable options overall
Compare specifications
| PSU Format | ATX | ATX | ATX | ATX | ATX |
|---|---|---|---|---|---|
| Capacity | 850 W | 850 W | 750 W | 850 W | 650 W |
| 80-plus certification | Gold | Gold | Gold | Gold | Gold |
| Modular Type | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
How we create the list
The ranking is updated monthly and is based on data we collect from our own platform. Products that rank highly are popular among our users while also maintaining high quality according to editorial expert assessments. Specifically, we weigh how many users follow the product via price alerts or lists, how it is rated by experts and users, as well as how much traffic it generates to stores and how well it is represented in retail. The texts on this page are AI-generated and created to give you a quick and clear overview. No products are paid placements – the ranking is driven solely by data.
