TOP power supplies for a computer in 2021: rating of the best, which one to buy - Setafi

1 be quiet! System Power 9 600W

Characteristics: the declared power is 600 watts, there is PFC, it is cooled by one fan with an adaptation function.

be quiet! System Power 9 600W takes first place in the top computer power supplies in 2021. The creator of the device is the German brand be quiet! Listan GmbH & Co. KG, which specializes in the production of computer equipment and PC components. The efficiency of the unit is 89%. This is the highest figure in the power supply market in 2021. In this case, the device consumes up to 0.13 W even in standby mode. There are two 12V lanes and four PCIe slots. With their help, the unit can immediately power the CPU, GPU and several video cards. Integrated protection against overloads and explosions. The system itself consists of several subsystems. These subsystems protect the individual components of the block - OPP, OVP, UVP, OTP, OCP and SCP. Under heavy loads, the DC-to-DC voltage conversion function is automatically turned on. This signature feature of the latest be quiet! designed to protect the processor and graphics card in the event of an emergency. There is one adaptive fan for cooling in the PSU. When the load / temperature in the case changes, temperature and load sensors, respectively, transmit a signal to it, and the fan regulates the speed of rotation of the blades. This decision allowed to reduce the overall noise of the system. But under high loads, the model is still noisy.

Pros:

• 600 watts confirmed power
• Long wires
• Fan with adaptation

Minuses:

• Noisy under heavy load

Price - 5,000 rubles.

2 Thermaltake TR2S 650W

Characteristics: power 650 watts, active PFC, 1 fan (12 cm) is used for cooling.

The case of the Thermaltake TR2 S 650W power supply is made of an alloy of several metals for increased strength and covered with black paint. The efficiency of its work is 86%, the maximum voltage is 230 V. The system contains high quality capacitors. In the event of an overload, they will protect the device from leaking electrolyte and also prevent an explosion. They are also needed for reliable and uninterrupted operation of the power supply. A single line at +12 Volts has a stabilization function for the safe operation of the PSU. The manufacturer recommends its device for medium computers, as gaming computers may not have enough power. At the same time, Thermaltake TR2 S 650W supports all Intel processors starting from the Haswell core. One fan is used for cooling. Because of this, the emitted noise does not exceed 20 decibels. To improve the cooling system, Thermaltake designed the unit with a special cable sleeve. This is necessary so that the wires do not block the flow of cold air to the heating elements and the ventilation of hot flows inside the case.

Pros:

• Affordable price
• Quiet
• Sleeve for wires with a high-quality braid

Minuses:

• A single sleeve for all cables is inconvenient

Price - 4 850 rubles.

3 Ginzzu CB650 650W

Specifications: Claimed power 650 watts, no PFC, one 12 cm fan cools the system.

The third place in the ranking of computer power supplies in 2021 is CB650 650W from Ginzzu. This is the only device from the rating that does not use heat shrink materials. The manufacturing company decided not to use them so that each cable had its own sleeve. According to the designers, this will increase the cooling efficiency by 12%. High-quality components are installed in the metal case - they give out a stable voltage even after long-term use. The stability of the work is also affected by one +12 Volt line for the entire PSU. In this Ginzzu model, the length of the power cable has been increased. Now it can be neatly twisted and placed in a case with a form factor. The stylish black case is made of alloys of several metals. Cools the device during operation with a single fan with an adaptation function, like in the first place. When the load or temperature changes, the fan receives a corresponding signal, after which it increases or decreases the speed of rotation of the blades.

Pros:

• Cooling system
• Power is confirmed in practice
• Easy to connect to PC
• Adaptive Fan

Minuses:

• Noisy at high loads

The price is 3,100 rubles.

4 ExeGate UNS400 400W

Characteristics: power 400 watts, no PFC, 1 fan (12 cm) is used for cooling, the noise level is up to 20 decibels.

Closes the top of the best budget PC power supplies in 2021. The power of the device is 400 watts. For gaming machines, this is not much, but the block will cope with the power of an ordinary computer. Thanks to the built-in connector, it works with the latest models of motherboards. Therefore, the device supports both new and old motherboards. In this case, the functionality is not lost. Works in the voltage range of 115-230 Volts. One fan is used for cooling. Despite the lack of an adaptation function, the fan performs its job well in terms of separate cooling of components and elimination of possible failures. Users of this PSU model in their comments on Yandex. The market notes the quietness of its work - the total noise level will not exceed 20 decibels. To protect against overloads and short circuits, a comprehensive protection system is built in, like the first place in the top. It consists of subsystems, each of which "protects" its own component of the power supply.

Pros:

• Quiet
• Weighs little
• Confirmed Power

Minuses:

• Low quality build

Price - 1,300 rubles.