ITEM NAME:New 5V 3.3V Output PL2303 USB To RS232 TTL Auto Converter Module Cable Adapter Descriptio n Features: Brand new and high quality. The USB to RS232 module based TTL provides the best and convenient way to connect your RS232 TTL Devices or demo board to your PC via the USB port. Size: 53*16mm Supports the following Windows OSes : 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) NOTE: For Windows 7, please use RC build 7100 or above. Package included : 1 x PL2303 USB To RS232 TTL Module 1 x 4Pin Cable ï ¼Ë†Cable color may be different with the picture Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! New 5V 3.3V Output PL2303 USB To RS232 TTL Auto Converter Module Cable Adapter.1 x PL2303 USB To RS232 TTL Module. The USB to RS232 module based TTL provides the best and convenient way to connect your RS232 TTL Devices or demo board to. your PC via the USB port. 1 x 4Pin Cable ï ¼Ë†Cable color may be different with the picture.