Best Power Supply

The Corsair CX600 600-Watt Power Supply is our best power supply and this one adheres to the most rigorous jobs of supplying power to your computer. The black sleeved cables add to its great designs and the AC input is universal from 90 volts up to 264 volts. It has been bronze certified at 80+ and it has low noise levels for the fans that adapt to the temperature of the computer box on its rotational speed to save up on energy. Made for flexibility, stability, high availability and the best performance, it powers up 600 watts of power and gives you 80 percent power efficiency due to the 80 plus bronze certification. Quality control is superb with this power supply and it has one ATX connector and has an MTBF of 100,000 hours.

Our step-up pick is the EVGA SuperNOVA G1 80+ GOLD 650W and this one has a total wattage of 600 watts. It makes the use of a double ball bearing mechanism for the fan set up. The OPP or over power protection greatly protects your unit from over powering. Unlike our top pick, this step-up pick is fully modular. It comes with a self-tester for the power and has a rating of 80+ gold. Greatly ideal for 4th generation Intel Core processors, the OVP or over voltage protection helps you to keep your components safe for over voltage and the SCP or short circuit protection does what it says – it protects your unit from short circuit instances.

The budget pick is the EVGA 600 B1 80+ BRONZE 600W and this one comes with one 24-pin ATX power cable. The OCP or over current protection helps to protect your unit’s components from excessive current. It has a rail design that is high in amperage with a single +12 volts and the OVP or over voltage protection helps you to keep your computer parts safe for over voltage. It has a sleeve bearing design for the fan at 120 mm of size and has been rated at 80 plus bronze. It runs at a power of 600 watts and it also has up to 10 SATA or Serial ATA connectors, each at 15 pins.

Table of Contents

A Little Background

A power supply is the main power source of a computer, whether it is a desktop, a laptop or a notebook. But in general, most power supplies are sold to and used by desktops, whether they are custom made or ready-made. Without the power supply, your computer will not run at all.
Choosing the best power supply may not be everybody’s cup of tea, but sooner or later you have to do it so that you can save more energy in the long run, especially also if you have an old PC that is broken and in the dust and the power supply is broken. A power supply usually gets screwed up due to lack of protection against surges and short circuit as well as under voltage and over voltage. This is why you need to choose a good power supply that will protect you from all of that.

How We Picked

We considered the following important things on choosing tbe best power supply:
Output – know the output of the power supply. Typically, you will find a lot of power supplies with 300 watts to 600 watts of power at the very most, with the high end ones having 1000 watts or more.
Efficiency – this refers to the efficiency and reliability of the power supply in delivering power and is expressed in percentage. It is also known as the peak efficiency level.
Modular vs. Non Modular – most expensive power supplies have modular builds but cheaper ones are non-modular.
Fan Noise Level – consider a power supply with an intelligent cooling fan that adheres to the temperature of the unit so that it only operates when needed. This is also to reduce the amount of annoying noise that your fan makes.
Certification by 80 Plus – consider the 80 Plus certification, if it is gold, bronze, silver, platinum, titanium, etc. This refers to how efficient this power supply is.
Protection level – make sure that the power supply at least has protection against electrical surge, short circuit, over voltage, overloading and under voltage and the like so that your computer peripherals will be thoroughly protected.

Our Pick

corsaircx600
Corsair CX600 600-Watt Power Supply

Our best power supply for any computer is the Corsair CX600 600-Watt Power Supply and this one powers up 600 watts of power. It has been made for flexibility, stability, high availability and the best performance and the power supply is highly compatible with a lot of unit. Take note that this is a non-modular type of power supply and it has been bronze certified at 80+.
When it comes to its noise level, the fan included runs very quietly and measures a standard 120 mm. This power supply has low noise levels for the fans that adapt to the temperature of the computer box on its rotational speed to save up on energy. And what’s more, the AC input is universal from 90 volts up to 264 volts.
In addition to that, the Corsair CX600 Supply has an active power factor correction of 0.99 so you get the best and most reliable power source possible. And additionally, it gives you 80 percent power efficiency due to the 80 plus bronze certification. Moreover, the matte black finish adds to its style. In addition to that, quality control is superb with this power supply.
The Corsair CX600 600-Watt gives you installation that is hassle-free and very smooth and it definitely adheres to the most rigorous jobs of supplying power to your computer. In addition to that, the black sleeved cables add to its great designs. Moreover, the high tech look is supplied by the black connectors. And also, the long cables provide convenience in high and full tower designs. On cable organization, the ample amount of connectors allows you to expand your computer build better.
And what’s more, the low noise from the fan makes this a great power supply to consider. Furthermore, the sleek black design has a restrained look. This particular power supply has one ATX connector and it has an MTBF of 100,000 hours. This power supply measures 150 by 140 by 86 mm on its dimensions and it has a total of 6 SATA connectors. Additionally, it also has a total of four 4-pin peripheral connectors and it has one floppy connector. Moreover, it also has one EPS connector and it also has two PCI Express connectors. Likewise, it is also backward compatible with ATX 12 volts 2.01 and 2.2 and the fan is quite large and ample enough to keep your system cool.
The Corsair 600-Watt Power Supply can work on most overclocked systems and the 80 plus bronze feature makes it great for the pricing. In fact, it can power up any PCI Express at 62 amps plus 12 volts and the components are shelved for protection. Additionally, it also has power protection features to keep your peripherals safe, which is important. Backed by a warranty of 3 years, you can guarantee that the CX600 by Corsair will back up your system just fine.

Flaws but Not Dealbrakers

Among the many flaws but not deal breakers of the Corsair CX600 600-Watt Power Supply as a computer peripheral include the fact that is non-modular, but that is okay because this is not too much expensive as the other power supplies out there.

Step-up Pick

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EVGA SuperNOVA G1 80+ GOLD 650W

Our step-up pick when it comes to the best power supply is the EVGA SuperNOVA G1 80+ GOLD 650W and this one has a total wattage of 600 watts. As for the features, it gives you great performance for its price and unlike our top pick; this step-up pick is fully modular. As for the certification, it has a rating of 80+ gold and it also comes with a self-tester for the power as an additional feature unlike our previous pick for the best power supply for its price that is higher.
The EVGA SuperNOVA G1 650W gives you 90 percent of efficiently even on the most rigorous loads and it also has a large fan size and bearing at 135 mm. This particular power supply also makes the use of a double ball bearing mechanism for the fan set up and it has a ton of protection features that will keep your unit safe and sound.
For example, the OPP or over power protection greatly protects your unit from over powering. Also, the UVP or under voltage protection protects your components from very little amount of voltage. Moreover, the OVP or over voltage protection helps you to keep your components safe for over voltage. Additionally, the OCP or over current protection helps to protect your unit’s components from excessive current. And what’s more, the OTP (not one true pairing) or over temperature protection helps to keep your unit in the best maintained temperature possible to keep your unit running smoothly and cool. Adding to that, the SCP or short circuit protection does what it says – it protects your unit from short circuit instances.
Being made only with the best Japanese brand capacitors so you are ensured that it is not something made with false quality and flimsy and cheap quality, the airflow is significantly improved and cluttering is reduced better due to the full modular design. Being very ideal for 4th generation Intel Core processors, the power supply purchasing depends on where you live – Europeans will get a European standard power cable instead of the American standard. The EVGA SuperNOVA has one 12-volt single rail and it is also great for overclocked systems.
On compatibility, it also works with Haswell processors and it has an eco mode so that it lessens power consumption to reduce the fan noise. Being backed by a warranty of 10 years, you are also guaranteed with a 24/7 technical support.

Budget Pick

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EVGA 600 B1 80+ BRONZE 600W

When it comes to our budget pick, we chose the EVGA 600 B1 80+ BRONZE 600W which effectively runs at a power of 600 watts. As for the certification, it has been rated at 80 plus bronze and it also comes with a self-tester for the power supply. The EVGA 600 has a sleeve bearing design for the fan at 120 mm of size and the OVP or over voltage protection helps you to keep your computer parts safe for over voltage.
Adding to its protective features, the OPP or over power protection greatly keeps your unit safe from over powering. Likewise, the UVP or under voltage protection aids your unit and avoids very little amount of voltage. And moreover, the SCP or short circuit protection keeps your unit from short circuit instances. This unit also has two EPS 12 volts, each with 8 pins and a detachable 4-pin section and the included mini power connector has 4 pins. Likewise, when it comes to protection, the OCP or over current protection helps to protect your unit’s components from excessive current.
Effectively, the EVGA 600 B1 80+ can work with 80 percent efficiently on the most typical loads and it also has a rail design that is high in amperage with a single +12 volts. Like most power supplies, this one also comes with one 24-pin ATX power cable and it includes 4 PCI Express cables at 8pins and 2 PCI Express cables at 6 pins. As for the other connections, it has up to 10 SATA or Serial ATA connectors, each at 15 pins and it also has five internal power cables at 4 pins each. Conveniently, it can be connected with 220 volts.
As for power, its AC input is from 115 to 240 volts AC at 10 amps from 50 to 60 Hz. You are guaranteed that this power supply fits any motherboard that has an ATX form factors. It is also backed by EVGA customer support 24/7 and is backed by a warranty of 3 years.

Best SLI Ready Power Supply

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Sentey XPP725-HS Xplus 725w Power Supply

Our best power supply that is SLI ready is the Sentey XPP725-HS Xplus 725w Power Supply which has wattage of 725 watts. When it comes to the design, the fan is sleeve bearing in its design and measures 140 mm. It is truly an ideal desktop power supply with a form factor of ATX for ATX motherboards. As we said, this is an SLI ready power supply which works on 115 / 230 AC power. And moreover, the sleeved cables make it look organized.
As a unique feature that is very convenient, the quiet fan adds peace of mind to the user. In addition to that, a coating that is scratch resistant is given to the connectors to give a unique and flawless design. It is truly an ideal gaming power supply or for casual use and it has one very sturdy +12 volts rail to simplify the installation and the power draw. When it comes to the fan’s features, the speed of the fan adjusts to the temperature so it draws not too much power when not needed and effectively cools your system down.
When it comes to the certifications, the Sentey XPP725-HS Power Supply has been rated and certified by CE, CB and S for safety. And what’s more, the power supply also complies with any motherboard that is ATX 12 volts at version 2.2. Likewise, the power supply gives you thorough protection against overloading, under voltage, over voltage and short circuit. It is also applicable for crossfire other than SLI and it is compatible with 48A video cards of the latest line.
Likewise, the system automatically shuts down when detecting any problems to protect your devices. What’s more, the Sentey XPP725-HS Supply has one motherboard connector, one CPU connector at 12 volts and one floppy connector. Additionally, when it comes to connections, it has two PCI Express connectors at 2 pins each and it also has five SATA connectors. What’s more, it has three Molex connectors and it has a current of 10 / 5A.
When it comes to the design, the black grill housing further protects the power supply without compromising ventilation. The power supply complies with ErP as well and it also includes the power cord as well as a user’s manual upon delivery. Backed by a warranty of 3 years, the Sentey XPP725-HS Power Supply is something you will find value for your money.

Best Energy Star Certified Power Supply

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Apevia ATX-BT650W 650W Power Supply

The Apevia ATX-BT650W 650W Power Supply is a great energy star certified power supply that has a very low noise fan that can automatically adjust depending on the temperature. The fan measures 120 mm and the power supply has a 5 percent tolerance for any output at 12 volts, 5 volts or 3.3 volts. And moreover, the housing and components are of high quality.
What is very unique about this power supply? Well, for instance, the blue LED fan adds to the aesthetic design and sleek looks. This power supply also maintains 650 watts of solid and uninterrupted power. Like we said, it has been certified by Energy Star so you are guaranteed of its great energy saving features. It is also super lightweight at only 3 pounds and it has been made with sturdy metal and given a black finish on its cosmic black casing.
The power switch is 115 / 230 volts and the power supply can support any single 12-volt output which is needed sometimes for high power usage. The Apevia ATX-BT650W also has over voltage protection as well as under voltage protection and it also has over power protection and great protection against short circuit. It can be used with dual core or quad core CPUs without much problems and it greatly supports the 2.3 version of any ATX 12-volt motherboard.
The Apevia 650W Power Supply offers support for Haswell, Crossfire and SLI and it has sleeved cables for better organization and good design as well as good maintenance. Moreover, it has two PCI Express slots at 8 pins each and it has a main power connector at 20 / 24 pins. Adding to that, it also has an input frequency of 60 / 50 Hz for the output.
The recommended operating temperature is from 0 to 40 degrees C. The power supply also has a hold up time of 17 ms at full load and has one ESP connector at 12 volts. The power supply also has design connectors that have a double forward converter design and it has four peripheral connectors at 4 pins each. On the connections, it has four Serial ATA (SATA) connectors and it also has one floppy input connector.
The power supply has a warm up stability of +/- 5 percent for 24 KHR and at normal line input, it has a switching frequency f 50 KHz. So if you want a quiet PSU then you should get this power supply as it is a great match for a gaming rig or set up with a ton of blue LED lights as a motif.

Power Supply with Low Noise Fan

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SilverStone Technology 300W SFX Power Supply

A low noise power supply, the SilverStone Technology 300W SFX Power Supply gives you a thorough performance without the trouble of excessive noise. It has a single rail +12 volts support and is laso certified as 80 plus bronze. It has form factor of SFX and it efficiently runs at 300 watts of power.
The power supply also supports any ATX motherboard as well and its single rail runs at 22 amps. Moreover, the fan measures 80 mm and runs quietly at only 18 dB of minimum working noise. The power supply has an active PFC feature and its efficiency level is great due to being around 82 to 25 percent at 20 to 100 percent of loading.
A great power supply for all-day operations, the SilverStone 300W SFX Power Supply gives you continuous power output and its highly recommended operating temperature is from 50 degrees C and below. It greatly supports any 6-pin PCI Express connector and the semi-fanless operation allows this power supply to run quietly without much noise and only as needed. As for the connections, it has about 3 to 4 molex connections with 4 pins each. Also, the flexibility of the cables makes this power supply great to use. Moreover, it also supports any dual 6+2 PCI-E connector. Overall, it is a great power supply that is a must-have for any person who is into DIY computers.

Ideal Power Supply for CCTV Computer Systems

epbowpt
EPBOWPT 12V 30A Universal Power Supply

An ideal power supply for use in CCTV systems, radio systems, computers, LED strip lights and many more, the EPBOWPT 12V 30A Universal Power Supply has surge protection and power shortage protection and has an output of 12 volts from 0 to 30 amps. It has an AC input of 100 volts to 120 volts or 200 volts to 240 volts and also protects against over voltage and overloading. It has a full range universal AC input.
It has an adjustable range of +/- 10 percent for the output direct voltage and the fan works when temperature rises to 45 degrees C. Made from sturdy metal material, it has a voltage tolerance for the output of +/- 1 percent and is an ideal for indoor lighting and other computer based systems.

Ideal Power Supply for the iMac

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Intel iMac 21.5″ 661-5299 Power Supply

The Intel iMac 21.5″ 661-5299 Power Supply supports any iMac which measures 21.5 inches for a power supply and it also works flawlessly as a power supply. Efficiently, it works on a lot of iMac models, from 2009 to 2011 and anything with a thin screen. Overall, it is a great way to power up your old iMac so it can be reused and resurrected.

Power Supply with Micro ATX Form Factor

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FSP Group Mini-ITX Micro-ATX Power Supply

The FSP Group Mini-ITX Micro-ATX Power Supply has a form factor of Micro ATX as well as Mini ITX and SFX and has power wattage of 300 watts. It has been certified 80 plus and its cooling system makes the use of an 80 mm cooling fan.
It runs silently in its cooling ability and adheres to the standards of RoHS and WEEE. It supports SFX at 12 volts and is also certified by CE for safety standards and quality. It has an energy saver standing at about 1 watt and the fan and thermal control system are linked to each other to effectively cool the system just when it is needed to save more energy.
Moreover, it has a bracket that goes from the SFX to the PS2 so any ATX case motherboard can fit in. This product is also free from lead and it passed the standards of GP or Green Product for environment friendly features. Highly compatible with any AMD or Intel processor, this is a 24-pin power supply. The fan also acts as an exhaust. It greatly supports SATA power as well as Blu-ray players and it highly supports graphics cards like NVIDIA GeForce GTX. It is backed by a manufacturer’s warranty of 3 years.

Best Full Modular Power Supply

seasonic
Seasonic 1050W ATX12V/EPS12V 80 PLUS Modular

The Seasonic 1050W ATX12V/EPS12V 80 PLUS Modular has an over voltage protection feature and it supports multiple GPUs all at once due to its big wattage support. Ideal for any heavy duty gaming rig or set up, the fluid dynamic bearing fans measure 120 mm and effectively cool down your system.
This awesome power supply is of the highest standards as it is 80 plus platinum certified and gives you a lot of efficiency as a power supply. It can guarantee you 1,050 watts of incredible power. It supports ATX motherboards at 12 volts and EPS at 12 volts and also an Active PFC power supply that is just as silent as falling snow. It is backed by a warranty of 3 to 7 years.

The Competition

It is important for a power supply to supply enough power for rigorous tasks such as gaming and video editing as well as day to day operations of any computer. This is why we only chose those with enough wattage but with silent operations on their fans because all know how annoying it is to have a noisy fan that goes with the power supply.

Other Frequently Asked Questions

Q: What should you consider when choosing the best power supply for your computer?
A: According to PC World , know how much power the power supply can give you as an output depending on your needs. Desktop computers require at least 200 watts with those having 1000 watts or more being the higher end ones. The peak efficiency level should also be considered. Make sure it has been certified by 80 plus for its power rating. The rating systems go like this: bronze, silver, gold, platinum and titanium, from lowest to highest.
Most power supplies you will see are either bronze or gold in its quality and this measures the efficiency of the power supply. Consider if the power supply has a single rail or a double rail and consider the organization of the cable system. Consider if it’s a modular or a non-modular power supply, since modular power supplies are very pricey.

Q: Why is a power supply important?
A: According to USRO : if it isn’t obvious yet, a power supply gives your system power. Without the power supply, even the motherboard would be nothing. Most people overlook the power supply but they shouldn’t so you should know the power output and the efficiency of the power supply before buying. A good and trusted manufacturer such as EVGA or Corsair that also sell other similar peripherals for your computer can be well-trusted.

Wrapping It Up

Overall, the Corsair CX600 600-Watt Power Supply is our best power supply for the most rigorous and much needed tasks on operating your computer and keeping it running.