New Power Supply Upgrade for COMPAQ PRESARIO SR5500 SERIES Desktop Computer - Fits The Following Models: SR5501P， SR5502<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Guaranteed to fit  your model Compaq Presario listed below in the Product Description</li><li>1 x Main connector (20+4Pin) This works with both 20 pin and 24 pin main connectors!</li><li>1 x 12V P4 connector， 3 x 4-pin Molex Connector， 2 x SATA(Serial ATA) connector， 1 x Floppy connector</li><li>480 Watts - This is an upgrade with additional wattage for additional devices， this replaces lower wattage power supplies</li><li>Special features: On/Power Switch， High Efficiency， Low Noise and Ripple Fan， Energy Star Efficiency， Over Power protection， Short Circuit Protection， Over Voltage protection， Meet UL 1950</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41q7M8XHshL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41HlvxJVlIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41q0wRPAqTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uCjtJtQKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51AxOjuAvbL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31a-i4BtORL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41c4cQDfAIL.jpg" noproxy>