Genuine Dell K340R, 9RD1W 255W Power Supply PSU For Optiplex 980 Small Mini Tower SMT Systems Compatible Part Numbers: K340R, 9RD1W, Compatible Model Numbers: L255EM-01, F255E-00 Genuine Dell K340R, 9RD1W 255W Power Supply PSU For Optiplex 980 Small Mini Tower SMT Systems Seamless, integrated design, Input: 100-240V, Output: 255 Max. Connectors: P1 - 24-Pin Mini ATX Power Connector, P2 - 4-Pin ATX Power Connector, P3 - SATA Power, P5 - SATA Power, P7 - 4-Pin Floppy Drive Power Connector, P8 - SATA Power, P9 - SATA Power Compatible Systems: Optiplex 980 Small Mini Tower SMT Compatible Part Numbers: K340R, 9RD1W, Compatible Model Numbers: L255EM-01, F255E-00