USB to Serial Converter The CDLSB-901 is a USB serial converter operate as a connection between one USB port and a 9 way RS232 serial device. The CDLSB-901 is for connecting serial devices even when a more→serial port is not available within a PC or laptop. Specification: Compliant with USB HID Specification. Cable length 1.2m USB Bus Powered. USB Rev 1.1 compliant. Supports RS-232 serial interface. Over 1Mbps transfer rate. WinChipHead CH340 chipset Supports remote wake-up and power management. Supports Windows XP/Vista/Windows 7 8 10 and 11 32 and 64-bit