Top 9 420W Power Supply – Computer Power Supplies

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1. Replace Power®

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Bestec TFX0220D5WA, AcBel PC8046, 420 Watt 420W TFX Power Supply Upgrade Replacement for HP 504966-001, TFX0250D5W, Delt

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Replace Power® #ad - 20+4 pin main power connector. Maximum 420 watts. Replacement power supply features ability to adapt to both 20 and 24 pin motherboards for increased compatibility. 1 x 20+4 pin main connector; 1 x 4-pin p4 cpu power connector; 2 x SATA; 2 x 4-Pin Molex. Works with both 20 and 24 Main Connectors. Sturdy 06mm secc Case. Compatible with hp s5000 series, acbel, as well as many other models. Works for lower wattages as well. Replaces Bestec, and Delta power supplies. Additional connectors for increased compatibility.
BrandReplace Power® #ad
ManufacturerReplace Power® #ad
Weight0.1 Pounds
Part NumberTFX0250D5W-DPS-250AB-28

2. Replace Power®

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HP-D3057F3R, Replace Power 420W 420 Watt ATX Power Supply Replacement for HP Compaq HIPRO HP-D2537F3R

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Replace Power® #ad - Replaces several older Legacy Power Supply; Upgrade to 420 Watts. Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies. 110-260v ac switchable Power Supply. Over current and over power Protection; Over Voltage and Short Circuit Protection. Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth.
BrandReplace Power® #ad
ManufacturerReplace Power #ad
Height3.9 Inches
Length6.4 Inches
Weight1.5 Pounds
Width6.3 Inches
Part NumberRPSU-D2537F3R
Model6864698

3. Replace Power®

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ATX-1956F,, 420W 420 Watt ATX Power Supply Replacement for HP Bestec ATS-100, ATS-150, ATX-1953D, ATX-1956D, ATX-1956-B1

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Replace Power® #ad - 110-260v ac switchable Power Supply. Over current and over power Protection; Over Voltage and Short Circuit Protection. Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies. Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth. Replaces several older Legacy Power Supply; Upgrade to 420 Watts.
BrandReplace Power® #ad
ManufacturerReplace Power® #ad
Height3.9 Inches
Length6.6 Inches
Weight1.5 Pounds
Width6.2 Inches
Part NumberRPSU-ats100
Model6864700

4. Apevia

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Apevia TFX-AP300W Standard Flex ATX 300W Power Supply, 115-230V AC, 1 x Floppy, 3 x SATA, 1 x 12VP4, 3 x Pheripheral, 1 x 20/24Pin Main Power

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Apevia #ad - Input voltage: 115-230v ac, input Frequency: 60/50 Forced air ventilation by 1 x 80mm Fan. Apevia tfx-ap300w standard 300w flex ATX Power Supply. 5% tolerance of 5v, 3. 3v & 12v output. Output: +3. [email protected]; [email protected]; [email protected]; [email protected]; [email protected] 5a.
BrandApevia #ad
ManufacturerApevia #ad
Height2.5 Inches
Length6.75 Inches
Weight2.1 Pounds
Width3.23 Inches
Part NumberTFX-AP300W
ModelTFX-AP300W

5. Replace Power®

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5187-5008, 5183-6914, Replace Power 420W 420 Watt ATX Power Supply Replacement for HP Compaq 5187-1098

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Replace Power® #ad - Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies. Replaces several older Legacy Power Supply; Upgrade to 420 Watts. 110-260v ac switchable Power Supply. Over current and over power Protection; Over Voltage and Short Circuit Protection. Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth.
BrandReplace Power® #ad
ManufacturerReplace Power #ad
Height3.9 Inches
Length6.3 Inches
Weight1.5 Pounds
Width6.2 Inches
Part NumberRPSU-5187-1098
Model6864699

6. Replace Power�

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4300, 2300, 2350, 2200, 4400, 3000, 2450, 1100, 420W 420 Watt ATX Power Supply Replacement for Dell Dimension B110, 2400

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Replace Power� #ad - Over current and over power Protection; Over Voltage and Short Circuit Protection. 110-260v ac switchable Power Supply. Replaces several older Legacy Power Supply; Upgrade to 420 Watts. Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth. Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies.
BrandReplace Power� #ad
ManufacturerReplace Power® #ad
Weight1.5 Pounds
Part NumberRPSU-dlp2507f3cp

7. SilverStone Technology

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SilverStone Technology 300 Watt TFX Computer Power Supply with 80 Plus Bronze and One PCIe Connector SST-TX300-USA

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SilverStone Technology #ad - 300w continuous power output at 40°C operating temperature rated for 24/7 operation. Silent running 80mm fan with 18 dBA minimum. Single pci-e 6pin connectors support. Active PFC. Support standard TFX form Factor. High efficiency with 80 PLUS Bronze certification.
BrandSilverStone Technology #ad
ManufacturerSilverStone Technology #ad
Height3.35 Inches
Length6.89 Inches
Width2.56 Inches
Part NumberSST-TX300-USA
ModelSST-TX300-USA
Warranty1 Year Parts and Labor

8. Replace Power®

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AcBel PC8046, TFX0250D5W, 350 Watt 350W TFX Power Supply Upgrade Replacement for HP 504966-001, Bestec TFX0220D5WA, DELT

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Replace Power® #ad - High quality Replace Power PSU. 350 watt for adding additional devices. Use to replace your dead power supply. Additional Connectors for great Compatibility.
BrandReplace Power® #ad
ManufacturerReplace Power #ad
Height3.2 Inches
Length8 Inches
Weight1.95 Pounds
Width6.3 Inches
Part Number8541585449

9. Generic power supplies

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S5100Z CTO, S5100BR, S510, New Slimline Power Supply Upgrade for SFF Desktop Computer, Fits: HP Pavilion S5000, S5100LA

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Generic power supplies #ad - 1 x main connector 20+4pin this works with both 20 pin and 24 pin main connectors! 1 x 12v p4 connector, 2 x SATASerial ATA connector, 3 x 4-pin molex connector, 1 x Floppy connector.300 watts - this is an upgrade with additional wattage for additional devices, this replaces lower wattage power supplies. Guaranteed to fit  your model Slimline Computer List below.
BrandGeneric power supplies #ad
ManufacturerReplace Power #ad
Height3.25 Inches
Length6 Inches
Weight1.9 Pounds
Width5.5 Inches
Part NumberPSU-SFF-HP9
ModelPSU-SFF-HP9