400 w power supply

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We’ve spent hundreds of hours researching and comparing 400 w power supply of all specifications to find the best one for any need (or budget). Here are the results.

The Best 400 w power supply of 2020 – Top Rated & Reviewed

2,517 Reviews Scanned

Rank No. #1
EVGA 100-N1-0400-L1 , 400 N1, 400W, 2 Year Warranty, Power Supply 100-N1-0400-L1
  • EVGA 400W N1 series
  • Fan Size/Bearing: 120 millimeter sleeve bearing - Quiet and intelligent auto fan for near-silent operation
  • Heavy-duty protections including OVP, OPP, and SCP
  • 2 year & EVGA's 24/7 technical support
Rank No. #2
Rextin DC 12V 400W 33A Regulated Transformer Power Supply Driver SW For LED Strip Lights (400W)
  • Led power supply transformer driver SW, Input: AC 110V/220V 50/60Hz, Output: 12V 33A 400W
  • Smart device surge protection for Short-circuit Protection, Overload Protection, Over Voltage,Over Temperature Protection. High efficiency, High Reliability, Low Temperature Rise
  • Certificates: CE/RoHS/FCC Approved
  • Warnings: Don't open or modify the led power supply. Please leave children, kids far away from high voltage power source. Please use it under professional electrician's guides. Any abuse or improper use will void warranty.
  • widely used in LED lighting, Home Appliance, Instrumentation, Office Automation, Telecom, Process and Engineering Industries etc
Rank No. #3
APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
  • APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
  • Cooling: 1 x 80mm Automatically Thermal Sensing Fan. All Cables are Sleeved
  • Connectors: 1 x 20+4pin Main Power, 1 x 4pin 12V(P4), 1 x 6/8pin PCIe, 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
  • Output: +3.3V@12A, +5V@12A, +12V@28A, -12V@0.3A, +5Vsb@2.5A
  • Dimension: 125mm x 100mm x 63.5mm (4.92" x 3.94" x 2.5") - L x W x H
Rank No. #4
942332-001 400W Power Supply Compatible for HP 280 288 480 600 800 G3 G4 PA-3401-1HA
  • Compatible Model: Compatible for HP 280 288 480 600 800 G3 G4 942332-001 PA-3401-1HA
  • Features:High Quality Resettable power shut down | Low Ripple & Noise internal 80mm fan delivers excellent airflow at an exceptionally low noise level,Specially selected components and high performance heat sink to cool down system.Cable-tube on main power cables for better cable routing and neatness.
  • Safety: Products have listed by CE(CONFORMITE EUROPEENNE), FCC as meeting the international safety standards for electrical safety.
  • What You Get: A Desktop Power Supply Unit (400W) Universal Connector Fits Most Of Branded Motherboard
  • Our Promise: Come with a 30-day money back and a 12-month guarantee against manufacturer defects from date of purchase, and 24hours' friendly customer service! (Tip: Please double check your device model and buy it with confidence!)
Rank No. #5
Raidmax XT Series RX-400XT 400W ATX12V V2.3 Power Supply
  • Brand RAIDMAX Model RX-400XT Series XT series
  • Type ATX12V / EPS12V Maximum Power 400W Fans 1 x 120 mm Fan PFC No Main Connector 20+4Pin +12V Rails Single
  • PCI-Express Connector 1 x 6-Pin SATA Power Connector 4 SLI No CrossFire No Modular No Efficiency up to 78% Over Voltage Protection Yes Overload Protection Yes Input Voltage 110 - 240 V
  • Input Frequency Range 50/60 Hz Input Current 15 A Output +3.3V@16A, +5V@16A, +12V1@28A, -12V@0.5A ,5VSB@2.5A MTBF >100,000 Hours Approvals FCC, CE Dimensions 3.50" x 6.00" x 5.75"
Rank No. #6
ATHENA AT40 400W AT POWER SUPPLY Athena Computer Power AP-AT40 400W AT power supply: Computers
  • Connectors: AT P8/P9 6+6pin x 1, AT Push Button 4pin x 1, Molex 4 Pin x 4, Floppy 4 Pin x 1
  • Dimension: 5.75”(W) x 3.25”(H) x 5.5”(D)
  • MTBF: 100,000 Hours on Maximum Load at +25°C
Rank No. #7
Vetroo 400 Watt ATX PC Computer Desktop Power Supply PSU SATA 20/24pin with 120mm Ultra Quiet Cooling Fan
  • Model Number: N380 | Maximum Power: 400W Continuous power | Fan: 120mm low noise cooling fan
  • Main Connector: 20+4Pin | Input Voltage: 100 - 220V | Input Frequency: 50 Hz
  • Output: +3.3V@15A, +5V@16A, +12@20A, +5VSB@2.5A
  • Connectors: 1 x Main connector (20+4Pin), 2 x Molex 4 Pin, 2 x SATA, 1 x 12V 4 Pin Connector
  • 1 Year Warranty on Vetroo Power Supply - Vetroo ~ Construct to Last!
Rank No. #8
Chengliang Power Supplys Dc 24v 17a 400w Original Ender 3D Printer Switching PSU UL Certified
  • 24v power supply 24 v regulated universal 24 volt adapter output 24 vdc 17a 400w certified DK-87763-UL
  • Power supplies input voltage 100-120/200-240vac by switch convert ac 100-120v/200-240v to dc 24v 17a 400w
  • Efficiency over 86% for 3d printer CCTV monitoring led light strip industrial automation communication
  • Smart full protections SCP OVP UVP OPP OCP OTP auto on/off cooling fan power on auto works Noise≤35dB
  • You get one original ender 3d printer power supply CL-P400W24V-D warranty 3 years 24hrs online service
Rank No. #9
Chengliang 12v 33a 400w Dc Universal Regulated Switching Power Supply UL Certified
  • 12 v power supply 12 volt adapter universal regulated output 12v 3a 400w efficiency more than 84%
  • Input voltage range 90-130/190-264 vac by switch convert ac 100-120V/200-240V to dc 12 vdc 33a 400w
  • 12vdc power supply for 3d printer led light strip CCTV Monitoring industrial automation communication
  • Smart full protections SCP OVP UVP OPP OCP OTP auto on/off cooling fan power on auto works Noise≤35dB
  • You get an original ender 3d printer power supply CL-P400W12V-D warranty 3 years always online service
Rank No. #10
400W Power Supply Upgrade for Dell L250NS-00 D250ED-00 H250AD-00 AC250NS-00
  • Guaranteed to fit  your model Slimline Computer List below
  • 1 x Main connector (20+4Pin) This works with both 20 pin and 24 pin main connectors!
  • 1 x 12V P4 connector, 2 x 4-pin Molex Connector, 2 x SATA (Serial ATA) connector
  • 400 Watts Maximum, 280 Watt Total (400 Watt Maximum) - This is an upgrade with additional wattage for additional devices, this replaces lower wattage power supplies

Top Rated 400 w power supply to Buy Now

 

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Why You Should Buy Best 400 w power supply from Amazon

Amazon is not the only store that sell 400 w power supply. However, there are several compelling reasons why you should buy 400 w power supply from them, with the suitable Price and Reviews. Here are five:

(1) Amazon Makes Shopping 400 w power supply Personal

Amazon is very good at making recommendations of 400 w power supply based on your search history. From time to time, they will even show you discounted prices on 400 w power supply that you previously expressed an interest in. They also make your shopping experience a little easier by showing you items that you recently viewed.

(2) Amazon Checkout is Easy

Amazon checkout is easy, especially if you already have an account. You can add 400 w power supply to your cart and go through a multi-step checkout process, or you can buy 400 w power supply with only one click by using your stored credit card information.

(3) Amazon Has Lots of Social Proof

Before you make a purchase for 400 w power supply, you want to know that the company you are dealing with is legitimate and that others trust the company enough to make a purchase. You may also like to read what others are saying about the product in the review section. Amazon does all of this quite well.

(4) Amazon Has Great 400 w power supply Images and Descriptions

In addition to still images, many of Amazon’s 400 w power supply have videos. This makes it easier for you to see exactly what you are purchasing. Amazon’s 400 w power supply descriptions are also quite good. In many cases, Amazon repeats the descriptions furnished by the manufacturer. In other cases, they write their own.

(5) The Amazon Site is Easy to Navigate

Navigating the Amazon site is easy. Even though the site is huge, you will not feel overwhelmed when searching for 400 w power supply. This is partly due to Amazon’s filtering process. You can search for items by brand, price or user rating. You can also search for specific features.

How to Choose the Best 400 w power supply (with Price and Reviews)

Although most 400 w power supply are similar, there are several differences worth noting. Here are nine criteria to consider when choosing an 400 w power supply:

(1) 400 w power supply Price and Reviews

Although price is not the only factor to consider, it is nevertheless extremely important. The price of an 400 w power supply should be in line with its value. You can compare 400 w power supply reviews to make sure you are getting a fair price. This is easy to do on Amazon.

(2) Demand

The demand for a particular 400 w power supply is a good indication of its ability to perform the functions for which it was designed. If a product has been around for a while and still has a high demand, it is likely a good product.

(3) Material

400 w power supply materials differ from manufacturer to manufacturer. Consider where and how you will be using your 400 w power supply to determine if one material would be better than another.

(4) Size

Like most products, 400 w power supplys come in various sizes. Do you need a large 400 w power supplyor a small one? Think about where you will use your 400 w power supply in order to determine the best size. You can also read the customer reviews on Amazon to see what others are saying about the size of the unit they purchased.

(5) Color

400 w power supplys also come in a variety of colors. Do you need a particular color? You should also consider whether the color of your 400 w power supply would have any effect on the efficiency of its operation.

(6) Durability

The durability of an 400 w power supply will be contingent on the materials used as well as the quality of the manufacturing process. Additionally, the type of 400 w power supply you purchase may affect its durability.

(7) Storage

Will you need to store your 400 w power supply? If so, you should consider the size and weight of the 400 w power supplyto make sure that it can be stored properly. Also, give some consideration to the type of climate in which your 400 w power supply will be stored.

(8) Customer Ratings

Customer rating is one of the best criteria for choosing an 400 w power supply. It is hard to know exactly how an 400 w power supply will perform until you get it home and try it out.

(9) Warranty

Make sure the 400 w power supply you are considering is backed by a good manufacturer’s warranty. If it isn’t, you might be better off with another ones.

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