Top 7 400W Power Supply UK – Power Supplies

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1. SilverStone Technology


SilverStone SST-ST40F-ES230, Strider Essential Series, 400W 80 Plus 230V EU ATX PC Power Supply, Low Noise 120mm

SilverStone Technology #ad - 24/7 continuous power output with 40℃ operating temperature. High efficiency with 80 PLUS certification. Class-leading single +12V rail.
BrandSilverStone Technology #ad
ManufacturerSilverStone Technology #ad
Height8.6 cm (3.39 Inches)
Length14 cm (5.51 Inches)
Weight1.26 kg (2.78 Pounds)
Width15 cm (5.91 Inches)
Part Number30286
Warranty36 Months

2. Be Quiet


80 PLUS Gold, Black, be quiet! BN292 Pure Power 11 400W, power supply

Be Quiet #ad - Dc-to-dc conversion for even tighter voltage regulation under heavy cross-loading conditions. Silence-optimized 120mm be quiet! fan. Stable operation thanks to Active Clamp and Synchronous Rectifier SR technology. Two strong 12V-rails. 80 plus gold efficiency up to 92%. Full suite of top safety features.
BrandBe Quiet #ad
ManufacturerBe Quiet! #ad
Height15 cm (5.91 Inches)
Length15 cm (5.91 Inches)
Weight1.9 kg (4.19 Pounds)
Width8.6 cm (3.39 Inches)
Part NumberBN292
Warranty2 year manufacturer



APEVIA SFX-AP400W Mini ITX Solution/Micro ATX/SFX 400W Power Supply

APEVIA #ad - Cooling: 1 x 80mm automatically Thermal Sensing Fan. Apevia sfx-ap400w mini itx solution / micro atx / SFX 400W Power Supply. Dimension: 125mm x 100mm x 63. 5mm 4. 92" x 3. 94" x 2. 5" - l x w x H. Output: +3. 3v@12a, +5v@12a, -12v@03a, +12v@28a, +5vsb@2. 5a. All cables are Sleeved. Connectors: 1 x 20+4pin main power, 1 x 12vp4/p8, 2 x 4pin molex, 1 x PCIe 6+2Pin, 3 x SATA, 1 x 4pin Floppy.
BrandAPEVIA #ad
ManufacturerApevia #ad
Height6.35 cm (2.5 Inches)
Length12.7 cm (5 Inches)
Width10.16 cm (4 Inches)
Part NumberSFX-AP400W 

4. CiT


No Power Cable Included | Black, 70% Efficiency, PPFC, 12cm Cooling Fan, CiT Builder 500W Power Supply, Non Modular, An Excellent Entry Level Power Supply

CiT #ad - Please note the cit 500w builder does not include a GPU 8 pin PCI-e connector. Mtbf > 50000hrs. Protection - over voltage protection ovp, over power Protection OPP, Under Voltage, Over Temperature Protection OTP & Short Circuit Protection SCP. Cooling system - 120mm sleeve bearing fan. Efficiency > 70%. Support - compliant with latest Intel standards ATX 12V, V2. 0 .
BrandCiT #ad
ManufacturerCiT #ad
Height8.6 cm (3.39 Inches)
Length14.2 cm (5.59 Inches)
Weight1.1 kg (2.43 Pounds)
Width15 cm (5.91 Inches)
Part Number500W-BUILDER-BLACK-V2
Warranty12 Months Warranty

5. Antec


Black, Antec VP400PC 400 W Power Supply Unit

Antec #ad - A 120 mm fan for effective and quiet cooling. Crafted for quality, performance and incredible value. Excellent Efficiency.
BrandAntec #ad
ManufacturerAntec #ad
Height4.32 cm (1.7 Inches)
Length12.45 cm (4.9 Inches)
Weight1.75 kg (3.86 Pounds)
Width12.7 cm (5 Inches)
Part Number0-761345-06487-3

6. Corsair


CORSAIR VS Series, 80+ White Certified, 400 Watt, Active PFC Power Supply, VS400

Corsair #ad - Active pfc with full range AC input 100-240 VAC. Over-voltage protection, under-voltage protection, over power protection, short circuit protection, and over temperature protection provide maximum safety to your critical system components.

Safety and agency approvals: fcc, ctuvs, tuv, weEE and RoHS Due to limited certifications, ce, tuv-s, this product may not be sold in certain regions. Engineered to meet maximum power output at a 40°C temperature rating. Compatible with the latest atx12v v2. 31 and eps 2. 92 standards and is backward compatible with ATX12V 2. 2 and older systems. 120mm thermally controlled sleeve bearing fan.
BrandCorsair #ad
ManufacturerCorsair #ad
Height13.97 cm (5.5 Inches)
Length14.99 cm (5.9 Inches)
Weight1.77 kg (3.9 Pounds)
Width8.64 cm (3.4 Inches)
Part NumberCP-9020117-NA

7. Be Quiet


Black, Be Quiet T380698! 400W System Power 9

Be Quiet #ad - Dc-to-dc technology for tight voltage regulation. Attractive black sleeved cables. Temperature-controlled 120mm fan reduces system noise. Stand-by drain of less than 015 watts. 80 plus bronze efficiency up to 89 Percent. Multi-gpu support with two PCIe connectors. Rock-solid stability with two strong 12V-rails.
BrandBe Quiet #ad
ManufacturerBe Quiet! #ad
Height8.6 cm (3.39 Inches)
Length14 cm (5.51 Inches)
Weight1.82 kg (4.01 Pounds)
Width15 cm (5.91 Inches)
Part NumberT380698
Warranty3 Year Manufacturer