The Gearmo Model: GM-FTDI-LED is a USB 2.0 to RS-232 Serial Adapter with LED indicator, designed for connecting legacy serial devices to modern USB host systems. This adapter features a blue plastic housing and a 16-inch cable length. With a DB9 male connector on one end and a USB Type-A connector on the other, it allows for easy conversion between the two interfaces. The unit is new and sealed, making it a reliable choice for those looking to bridge the gap between older serial devices and modern USB systems.