Description: Equipped with the CH340 USB driver IC, which offers stable performance and full compatibility with USB1.1, USB2.0, and USB3.0. Supports baud rates up to 256 kbps. Features the SP232 RS232 bus IC, an industrial-grade RS232 conversion IC. Provides USB to RS232 serial port conversion with a 3-pin assignment: GND, TX, RX. Offers USB to TTL serial port conversion with a 6-pin assignment: GND, 5V, RXD, TXD, CTS, DTR. Compatible with PRO MINI download ports. Ideal for replacing CH340 with FT232, CP2102, or PL2303 in Arduino Pro Mini downloads. Compact dimensions: 36 x 14 x 12 mm (excluding USB ports). Supported Windows Operating Systems: Windows 98SE Windows ME Windows 2000 SP4 Windows XP SP2 and above (32 & 64 bit) Windows Server 2003 (32 & 64 bit) Windows Server 2008 / 2008 R2 (32 & 64 bit) Windows Vista (32 & 64 bit) Windows 7 (32 & 64 bit) Windows 8 Windows 8.1 Windows 10 Applications: RS232 Bus device TTL232 Communication for MCU, FPGA/CPLD, ARM, AVR, PIC Arduino PRO mini downloader cable PLC Modbus device Camera PTZ MODEM Computer communication terminal Package Included: 3 x USB to Serial Port Multi-function Converter Module