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300 Watt ATX Replacement Computer PC Power Supply

Product ID: ATXPOWER300

Replace or upgrade to a 300W power supply for a standard ATX computer

Features
  • Provides a maximum output power of 300 watts

  • High-Flow fan provides efficient cooling for the system and power supply

  • High quality connectors provide minimal resistance and enhanced electric conductivity

More Features . . .
  • Premium EMI/RFI power filtration system provides low noise/ripple for super clean and stable power to all system components

  • ATX version 2.03 and ATX12V compliant

  • 2 years warranty

  • Quad Protection Plus: Short Circuit Protection, Over Voltage Protection, Over Load Protection, Over Current Protection, and No Load Operation.

  • Long-life transformer and built-in short-circuit protection

  • The temperature controlled smart fan cools your entire system while the EMI/RFI power filter reduces noise/ripple

Prices may be lower from Resellers:

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Available in
$54.99 USD

ID: ATXPOWER300

In stock: ?
USA: 521  |  Canada: 37
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We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.


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A reliable upgrade or replacement power supply for desktop PCs.

This StarTech.com power supply offers an upgrade or replacement to a variety of Intel or AMD-based ATX desktop computer systems. Compliant with the industry standard ATX specification and using the standard ATX form-factor, this power supply (PSU) can be used as a replacement in a variety of popular OEM desktop systems.

Conforming to ATX revision 2.03, this power supply features a 20-pin ATX power connector and 6-pin AUX power connector, for support for older, legacy computer systems, as well as some newer, low powered systems with it's ATX12V connector. High quality components and a built in 80mm cooling fan lend to a durable and reliable power supply, while being backed by StarTech.com's 2 year warranty and free lifetime technical support.

The StarTech.com Advantage
  • High performance components and connectors are designed for extra long life and provide maximum system performance
  • Long-life transformer and built-in short-circuit protection
  • See Applications page for detailed list of supported
  • The temperature controlled smart fan cools your entire system while the EMI/RFI power filter reduces noise/ripple
Common Customer Questions

View FAQs...

Applications
  • Replacement for standard 250W & 300W ATX12V Power Supplies
  • Replacement Power Supply for Bestec ATX-300-12E
  • Compatible with following eMachines A-Series Model:
    A26EV17F
  • Compatible with following eMachines C-Series Models:
    C1641, C1844, C1904, C2160, C2280, C2480, C2684, C2685, C2782, C2825
  • Compatible with following eMachines D-Series Models:
    D2046, D2244, D2246, D2266, D2346, D2386, D2586, D2685
  • Compatible with following eMachines H-Series Models:
    H2341, H2482, H2542, H2602, H2615, H2642, H2742, H2825, H2865
  • Compatible with following eMachines S-Series Models:
    S1642, S1862, S1940, S2482, S2485
  • Compatible with following eMachines W-Series Models:
    W1500, W1640, W1700, W1800, W2040, W2047, W2060, W2247, W2060, W2247, W2260, W2646, W2686, W2785, W2958, W4682, W4065
  • Compatible with following eMachines T-Series Models:
    T1140, T1150, T1220, T1221, T1300, T1360, T1440, T1600, T1740, T1742, T1782, T1840, T1842, T1860, T1862, T1980, T2040, T2042, T2080, T2082, T2085
  • T-Series (cont'd):
    T2200, T2200SE, T2240, T2245, T2260, T2341, T2385, T2460, T2482, T2484, T2542, T2596, T2605, T2615, T2625, T2642
  • More T-Series:
    T2672, T2682, T2692, T2698, T2778, T2792, T2796, T2798, T2824, T2825, T2842, T2865, T2875, T2882, T2885, T2895, T3025, T3265, T4060, T4080, T4170, T4480, T4510, T4511, T4697, T6000
  • Compatible with following Gateway Models:
    DX100, B330
Product Numbers
Warranty Information
Warranty 2 Years
Hardware
Fan Bearing Type Sleeve Bearing
Fans 1 - 80 mm
Performance
Air Flow Rate 32.3 CFM
Efficiency Rating >65% (Typical Load)
Fan RPM 3000 RPM +/-10%
MTBF 40,000 Hrs
Noise Level 27.4 dBa
Output Power 300W
Power Factor Correction No
Connector(s)
Output Connectors 1 - ATX 12V P4 Power (4 pin, v 2.x) Male
1 - ATX AUX Power (6 pin, v 1.x) Female
1 - ATX Power (20 pin, v 1.x) Male
1 - SATA Power (15 pin) Receptacle
2 - SP4 (4 pin, Small Drive Power) Female
6 - LP4 (4 pin, Molex Large Drive Power) Female
Power
Current +12.0V1 (A) 15A
Current +3.3V (A) 28A
Current +5.0V (A) 30A
Current +5.0Vsb (A) 2A
Current -12.0V (A) 0.8A
Current -5.0V (A) 0.3A
Input Current 8A ~ 4A
Input Voltage 115~230
Max Inrush Current 50
Environmental
Operating Temperature 0 ~ 50
Storage Temperature -20 ~ 80
Physical Characteristics
Product Height 3.3 in [8.5 cm]
Product Length 5.9 in [15 cm]
Product Weight 4.1 lb [1.9 kg]
Product Width 5.9 in [14.9 cm]
Packaging Information
Shipping (Package) Weight 4.3 lb [2 kg]
What's in the Box
Included in Package 1 - 300W ATX Power Supply
1 - Power Cord (NA)
1 - Instruction Manual

Computer Power Cables - External (1)

6 ft Standard Computer Power Cord - NEMA5-15P to C13
PXT101

6 ft Standard Computer Power Cord - NEMA5-15P to C13

Replace worn-out or missing computer power cords

$7.99

In stock:   USA: 8993  |  Canada: 97

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

Computer Power Cables - Internal (6)

LP4 to 6-Pin PCI Express Video Card Power Cable Adapter
LP4PCIEXADAP

6in LP4 to 6 Pin PCI Express Video Card Power Cable Adapter

Convert a Standard LP4 Power Supply Connector to a 6-pin PCI Express Video Card Power Connector

LP4 to 6-Pin PCI Express Video Card Power Cable Adapter
LP4PCIEXADAP

6in LP4 to 6 Pin PCI Express Video Card Power Cable Adapter

Convert a Standard LP4 Power Supply Connector to a 6-pin PCI Express Video Card Power Connector

LP4 to 2x LP4 Power Y Splitter Cable M/F
PYO2L

LP4 to 2x LP4 Power Y Splitter Cable M/F

Connect two LP4 peripherial devices (CD/DVD-ROM drives etc.) to a single LP4 connector

$6.99

In stock:   USA: 6216  |  Canada: 472

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

12in LP4 to 2x SATA Power Y Cable Adapter
PYO2LP4SATA

12in LP4 to 2x SATA Power Y Cable Adapter

Power two SATA drives from a single LP4 power supply connector.

$7.99

In stock:   USA: 1783  |  Canada: 806

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

LP4 to 2x SP4 Power Y Splitter Cable M/F
PYO2S

LP4 to 2x SP4 Power Y Splitter Cable M/F

Power up to 2 SP4 devices using a single Molex LP4 connector from the computer power supply

$6.99

Not Available
6in 4 Pin Molex to SATA Power Cable Adapter
SATAPOWADAP

6in 4 Pin Molex to SATA Power Cable Adapter

Power a Serial ATA hard drive from a conventional LP4 power supply connection

$5.99

In stock:   USA: 1163  |  Canada: 214

We will transfer stock to fulfill your order at no extra cost. If the quantity shown for our US warehouse isn’t enough to fulfill your order, we will transfer the required stock from our Canadian warehouse.

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300 Watt ATX Replacement Computer PC Power Supply

Startech.com - 300 Watt ATX Replacement Computer PC Power Supply

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