Giới thiệu Feature Exquisite mini-sized with DB9 connector. Compatible RS-232 standard of EIA/TIA and TTL electrical level data interface. Power supply: Unique adoption,RS-232 pinout powered, three-line ( TXD, RXD and GND ) communication without necessity for initialization of the serial ports to obtain power supply. Baud rate: 300BPS-115.2KBPS Plug-and-play and universally applicable on all the existing communication software. Dimensions: 63mmX33mmX17mm. Working environment:-40℃ to 85℃, relative humidity 5% to 95%. Supporting DOS/WIN95/WIN98/WIN2000/NT/XP and Linux, etc. Customerizable products with handshaking signal.