"This DB25 manual switchbox is perfect for sharing parallel or serial perpherials. The switchbox features the rugged metal case that is designed to withstand the rigors of everyday use. Each connector is wired straight-thru in a pin-to-pin configuration to ensure compatibility.• *Note: Not designed for use with laser printers.Manual Switchbox:· Type: 4 way DB25 switch· Ports: 5x DB25 female· Application: Used for sharing parallel or serial perpherials.· Power: No Power Required· Switch: Durable, High Quality Rotary· Stand: Anti-skid Feet· Case: helps prevent unwanted EMI/RFI interference· Color: Beige."