As the name suggests, the?HP 639173-001 Power Supply?is one of the most crucial parts of your HP server configuration, effectively supplying power to the rest of your system, as well as protecting your system from data loss in the event of a power outage or fluctuation. If your server configuration is in need of one, then this?HP 639173-001 Power Supply?is just what you need.???At 750W, the?HP 639173-001 Power Supply?is capable of providing efficient power to your system while protecting your data from errors during power surges.?The?HP 639173-001?has been removed from a working unit, tested for complete functionality by our expert in-house HP Certified Technician, and is ready to ship today!?Purchase with confidence, as the photos above represent the exact quality of your items, which are bundled with our?90 Day Warranty.?*Please note, we have additional HP 639173-001 in stock; feel free to send a message and we will update the quantity to suite your specific needs.*?Thank you for choosing AltaTech for all your lightning fast IT needs!