Industrial USB To RS485 422 CH340G FT232RL Converter Upgrade Protection Converter Compatibility Standard Connector Board Module Product parameters:_x000D_ _x000D_ 1. Power: USB 5V_x000D_ _x000D_ 2. Transmission distance: 1200 m (under conditions 9600bps)_x000D_ _x000D_ 3. Chip Solution: CH340_x000D_ _x000D_ 4. Communication protocol: pure hardware device, regardless of protocol_x000D_ _x000D_ 5. Baud rate: up to 921600bps, pass each other ancillary support higher baud_x000D_ _x000D_ 6. protection:TVSTransient suppression protection, electrostatic ESD protection, surge protection, AB shorted signal lines and power supply protection short (short circuit does not burn)_x000D_ _x000D_ 7.Temperature range: -40 -80 _x000D_ _x000D_ 8. External 5V supply, the current limiting fuse_x000D_ _x000D_ 9. Support system:Hot swappable, support win98 / CE / 2000/2003/2008 / XP / WIN7 / WIN8 / WIN10 / VISTA / LINUX / MAC OS X system, USB interface, hot-swappable_x000D_ _x000D_ 10. The automatic identification and control data transmission direction, without any handshaking signals (such as RTS, DTR, etc.) without jumper settings to mode conversion, to ensure compliance with existing communications software and hardware interfaces._x000D_ _x000D_ 11. Weight: 16g_x000D_ _x000D_ 12. size: 70 * 27 * 13mm length and breadth _x000D_