Replacement for Dell power supply model number N350N-00 and/or Part No PS-6351-1DFS , PS-6351-1DS, PS-6311-1DFS . This Power Supply usually is found in Dell Dimension 8400 and Dimension 4700. It is a direct power supply replacement for Dell Systems Dimension 4700, 8400 and Optiplex GX280.
Specs of this Power Supply:

• 300 Watt ATX Power Supply (P4 Ready) for
  Intel / AMD "Athlon XP" Recommended Power Supply.
  
• 24pin ATX Connector to Dell's Motherboard
  
• 4pin Molex Plugs to Devices like DVD, CD-RW, CD-ROM, HARD DRIVE
  
• 2 SATA HARD DISK Drive Power Plugs
  
• FLOPPY DRIVE Power Plug Connector
  
• P4 4pin Square Peg Power Connector
  
• 6pin PCI EXPRESS Power Video Connector
  
• Dimensions: 5.9" W x 3.4" H x 3.5" L