The 31-099-0 is an automotive plug and cord assembly designed to power electronic devices from a vehicle's DC outlet. It features an 8-foot cord that terminates in a standard 2.1mm plug. For overcurrent protection, the assembly includes a replaceable F1A (1 Amp, 5 x 20mm) fuse. This product is rated for 3 Amps at 12VDC, making it suitable for various portable electronics used in automotive settings. The 31-099-0 part number designates the bulk packaging option.