Can I sub this unit out for the ASUS GPS300AB that is in my wife's computer now? I'm pretty sure I can. Thanks

Search for Newegg's power supply calculator and input the hardware for your wife's computer. If the result is less than 300, ok. If it's more than 300 get a bigger one.

what are the dimensions of this power supply?

The power supply is standard dimensions. If you look in the specifications tab, it will tell you its dimensions. but it's about the same size as most standard power supplies.

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COOLER MASTER Elite RS350-PSARI3-US 350W Power Supply New 4th Gen CPU Certified Haswell Ready

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ATX12V
110 - 120 V / 220 - 240 V 47 - 63 Hz
+3.3V@20A, +5V@12A, +12V1@10A, +12V2@13A, [email protected], [email protected]

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Overview

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Reviews (11)

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The reliable, efficient and affordable line of Elite power supplies is ideal for mainstream and basic computing systems. Built with quality components and dual +12V outputs, the Elite series is fit to handle demands of high power requirements. Built-in EMI noise filter reduces electro-magnetic interference for reliable power delivery. The eco-friendly design allows the Elite series to reach more than 70% efficiency at typical loading and meet Energy Star and Blue Angel requirements. A 120mm fan makes the Elite series a quiet and cool power supply.

ATX12V v2.3 CompatibleCompatible with the ATX12V v2.3 standard, the Elite series provides maximum power stability to drive processors as well as other system components.
350W Maximum PowerA maximum power of 350W delivers safe, reliable output for mainstream computer systems. Dual industry-leading independent +12v rails are provided for more stable and safer power output.
Efficient CoolingThe 120mm intelligent fan automatically adjusts the speed level according to the PSU temperature for efficient cooling.

General
Brand	Cooler Master
Series	Elite
Model	RS350-PSARI3-US

Details
Type	ATX12V
Maximum Power	350 W
Fans	1
PFC	No
Main Connector	20+4Pin
+12V Rails	2
SATA Power Connector	3
Haswell Support	Yes
Modular	No
Power Good Signal	100-500ms
Hold-up Time	> 17 ms
Efficiency	> 70%
Energy-Efficient	No
Over Voltage Protection	Yes
Input Voltage	110 - 120 V / 220 - 240 V
Input Frequency Range	47 - 63 Hz
Input Current	8A @ 115Vac / 5A @ 220Vac
Output	+3.3V@20A, +5V@12A, +12V1@10A, +12V2@13A, [email protected], [email protected]
MTBF	>100,000 Hours
Approvals	CE / GOST / C-tick / UL
Connectors	M/B 20+4 Pin x 1 CPU 4+4 Pin x 1 4 Pin Peripheral x 3 SATA x 3 4 Pin Floppy x 1

Features
Features	High performance components for improved reliability. Eco-friendly design to meet Energy Star and Blue Angel requirements. Multi-protection design (OVP/OCP/OPP/SCP). Supports dual +12V1 and +12V2 outputs for high power usage. One 4+4 pin +12V CPU connector for high-end CPU. EMI Noise filter built-in design. Over 70% efficiency at typical loading. Compliance with the latest Intel standard ATX 12V V2.3.

Details
Energy-Efficient	No

Additional Information
First Listed on Newegg	May 16, 2013

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Warranty

Limited Warranty period (parts): 2 years
Limited Warranty period (labor): 2 years
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Return for refund within: 30 days

Return for replacement within: 30 days

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COOLER MASTER Elite RS350-PSARI3-US 350W Power Supply New 4th Gen CPU Certified Haswell Ready

Learn more about the Cooler Master RS350-PSARI3-US

Customer Reviews of the Cooler Master RS350-PSARI3-US

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16817171081

COOLER MASTER Elite RS350-PSARI3-US 350W Power Supply New 4th Gen CPU Certified Haswell Ready

Learn more about the Cooler Master RS350-PSARI3-US

Customer Reviews of the Cooler Master RS350-PSARI3-US

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info