This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Genuine Dell 255W Replacement Power Supply 255 Watt Max Output 100- 240V Input Compatible with:Optiplex 580, 760, 780, 960, and 980 Desktop Systems Compatible Dell Part Numbers:RM110, FR597, CY826, WU123, T164M, N249M, C112T, D390T, F283T, G238T, V6V76 Model Numbers: F255E-01, D255P-00, L255P-01, AC255AD-00, H255E-01 Reference Numbers: DPS-255BB A, PS-5261-3DF1-LF, VP09500052-00, HP-D2553A0