Top 9 300W Power Supply ATX – Computer Power Supplies

As an Amazon Associate I earn from qualifying purchases.

1. Thermaltake


Thermaltake Smart 430W 80+ Black Continuous Power ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0430NPCWUS-W

Thermaltake #ad - 80 plus certified: 80% efficiency under typical load. Active pfc power factor correction, MTBF: 100, 000 hours. Compliance with Intel ATX 12V 2. 31 & eps 12v 2. 92 standards. Industry grade protections: opp over power Protection, OVP Over Voltage Protection, SCP Short Circuit Protection. Supports 2 pci-e 6+2pin connectors. 5 year warranty. Delivers 430w continuous output at +40℃.
BrandThermaltake #ad
ManufacturerThermaltake #ad
Height7.25 Inches
Length9 Inches
Weight3.3 Pounds
Width4 Inches
Part NumberPS-SPD-0430NPCWUS-W

2. Apevia


Black, Apevia ITX-AP300W Mini-ITX / Flex ATX 300W Solid Power Supply

Apevia #ad - Dimension: 150mm x 81. 5mm x 405mm 5. 9" x 3. 21" x 1. 59" - l x w x H. Standard mini-itx / flex atx type, Maximum Power: 300W. Output: +3. [email protected], [email protected], [email protected], [email protected], [email protected]5a. Connectors: 1 x 20+4pin main power, 2 x sata, 2 x 4pin Molex, 1 x 4pin 12vp4, 1 x 4pin Floppy. Cooling: forced air ventilation by 1 x 40mm Double Ball Bearing Fan.
BrandApevia #ad
ManufacturerApevia #ad
Height1.6 Inches
Length5.9 Inches
Weight1.8 Pounds
Width3.21 Inches
Part NumberITX-AP300W 
Warranty1 Year

3. Apevia


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

Apevia #ad - Input voltage: 115-230v ac, input Frequency: 60/50 Apevia tfx-ap300w standard 300w flex ATX Power Supply. Forced air ventilation by 1 x 80mm Fan. 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

4. LXun


LXun FSP300-60ATV 300W ATX Power Supply Compatible with M/N: FSP300-60ATV FSP250-60ATV FSP300-60PFG FSP250-60PFN FSP300-60PLN FSP300-60GLC

LXun #ad - Shipping: shipped from the U. S, delivery time takes about 2-5 bussiness days. Return guarantee: one year warranty. For any reason you're not completely satisfied with the product, you can ask for a replacement or full refund. High quality: brand new high quality 300W Power Supply Replacement, each item has been tested and in good condition before shipping. Compatible model number: fsp300-60atv fsp250-60atv fsp300-60pfg fsp250-60pfn fsp300-60PLN FSP300-60GLC. Package contents: 1 x fsp300-60ATV ATX power supply.
BrandLXun #ad
ManufacturerLXun #ad



IN WIN CK709 SFF Micro ATX Desktop case with 300W Power Supply CK709.FF300TB3

IN WIN #ad - Optimal Thermal Performance. Superior Performance. Smart interior Structure Design. Easy Integration. Tool-free drive bays and PCI-E Slots. Standard tfx 12v 300W Power Supply.
BrandIN WIN #ad
ManufacturerIn Win #ad
Height5.8 Inches
Length13.3 Inches
Weight8.48 Pounds
Width15.1 Inches
Part NumberCK709.FF300TB3
Warranty3 years



YEECHUN 300W Power Supply Replacement for Dell Inspiron 3847 MT L300NM-01 / PS-6301-06D G9MTY 0G9MTY

YEECHUN #ad - We have 1 year service warranty, 60 days money back guarantee. Power supply connectors: 1 x 24-pin Connector, 4 x SATA Connectors, 1 x 4-Pin. High quality - all Dell power supply are tested before shipping.

Compatible with the following models number - ps-6301 de-xd301mgf hk400-17fp dps-300ab-66 d300r001l fh-xd301myr-6 dps-300 04g185024420de 04g185015610de atx0300p5wb b300nm b300pm h300nm hp-p3017f3 D300 L300 PS-5301 PC7050 PC8035. Compatible with the following part number - x9gwg xw596 xw597 xw598 y359g yg01m yx308 yx309 yx446 yx449 yx453 mpcf0 0vwx8 5w52m 57kjr 5ddv0 6r89k 84j9y 949h1 cd4gp dg1r8 56dxg cf5w6 g9mty xw597 ffr0y gh5p9 fy630 gvy79 h057n 2751v 55vhc 6rvk0 6y94N 9MRG6 D382H H056N HT996 J0 .
BrandYEECHUN #ad
ManufacturerYEECHUN #ad
Part NumberL300NM-01 / PS-6301-06D G9MTY 0G9MTY

7. Sparkle


Sparkle FSP FSP300-60ATV 300W ATX Power Supply

Sparkle #ad - Input current: 7a rms @ 115vrms/60hz, 000 hours on maximum load at +25°C Dimension WxLxH: 6 x 5. 5 x 3. 4 inch / 150 x 140 x 86 mm. Ohm min. Feature: complied with atx12v 2. 0 standard high efficiency, +5v, iec 60950, tuv, ±10% of 230vrms/47~ 53hz, and burn-in tested re-settable power shut down approved by ul 60950, 4a rms @ 230vrms/50hz inrush current: 80a max cold start, ate, nemko cb report included on/off switch input: input range: ±10% of 115vrms/57~ 63hz, off delay 1ms minimum ttl and cmos compatible leakage current: not exceed 3.

5ma mtbf:100, and over current protection 100% hi-pot, and +12v2 total output not exceed 286w connectors: 20/24pin main power; 4pin p4 power; 4x peripheral; 1x sata; 1x floppy dielectric withstand: input to frame ground 1800v ac for 1 second insulation resistance: 20 meg. Efficiency: 70% minimum measured at nominal ac main voltage with maximum load on all outputs rise time: less than 20ms on all outputs hold-up time: 12ms minimum at 115v/230vac power good signal: power on delay time 100 ms to 500 ms, low noise and ripple and reliability Remote On/Off function Internal 80mm 12V DC fan included Noise Killer Thermal fan speed control function Complies with FCC part 15 subpart J Class B and CISPR 22 Class B Output over voltage, +12V1, 100A Max warm start measured at 115Vrms/60Hz Output: Total Output: 300W +3.3

3v and +5v total output not exceed 120W +3. 3v is load on 20a then +5V maximum load is 108a; +5v is load on 20A then +3. 3v maximum load is 6a +12v1+12v2 total output not exceed 264W +3. 3v, short circuit, manual selection.
BrandSparkle #ad
ManufacturerSPARKLE #ad
Height3.6 Inches
Length9.2 Inches
Weight3.74 Pounds
Width6.9 Inches
Part NumberFSP300-60ATV

8. powerman


Power Man IP-S300FF1-0 300W 300 Watts TFX V 2.1 Switching Power Supply 24pin ATX

powerman #ad - Brand: power man switching TFX12V Power Supply. Part number: 1ddr300FF00020 Max power output: 300W. Connectors: ? 1x 24pin main power ? 1x 4pin CPU Power ? 4x SATA ? 1x Floppy. Model: ip-s300ff1-0 .
Brandpowerman #ad
ManufacturerPower Man #ad
Height2.56 Inches
Length3.35 Inches
Weight3 Pounds
Width6.89 Inches
Part Number1DDR300FF00020



Coolmax Power Supply CM-300 Silver

TOP & TECH #ad - All kinds of protection circuits OVP/OPP/SCP. Fully supports all Intel & AMD system demands. 80mm silent fan design, long life, noiseless and fastest cooling time. Serial aTA Ready. Tube-tide design to tidy wires.
BrandTOP & TECH #ad
ManufacturerCoolmax Technologies #ad
Height2.5 Inches
Length4.9 Inches
Weight1.1 Pounds
Width3.9 Inches
Part NumberCM-300