PWI-PR550 PWIPR550 Prudentway Professional Series V2.2 550Watt Power Supply New in Retail Box Product Spec: Special Connectors - 1xMain Connectors (20+4 pin) 1x12V (P4) 8xPeripheral 2xSATA 2xFloppy 2xPCI-E 1x 4 pin-8 pin Adapter Dual +12V - Yes SLi Support - Nvidia SLi Certified Fans - 8cm fan * 1 + 9cm fan *1 (with Crystal Blue Fan) Ball Bearing Fan Smart Fan Control Leakage Current - 3.5mA max. Cables - Black Sleeved Cables Total Power - 550W continuous maximum at full load Key Feature: ATX 12V v2.2 compliant High efficiency and low noise Dual +12V Rails RoHS compliancy Stylish dual ball bearing crystal blue fans design(9cm and 8cm) Smart fan 8-pin power connector for Xeon and high-end Systems Dual PCI Express SLi ready Dual SATA connectors Super silent technology Smart Cable Management PWIPR550 $75.99On-Sale: Sales Assistance: 800-832-5168 (9:30-6 Pacific, M-F) Phone-Orders and Will-Calls are welcome! Call us before you arrive in-store! Holiday Dec.24 & 31 Office are closed. For UPS Holiday delivery schedule, visit http://compass.ups.com/ All items carry a 14-day money back guarantee (15% re-stocking and without shipping charge) For OPENED Software Package with manufacturer guarantee, the customer should contact the manufacturer directly for service or exchange If "Shipping Charge" shown on your order is less than $4, you must please call or e-mail us to confirm the correct "Shipping Charge" All trademarks, registered trademarks, and names are the property of their respective owners.