USB TO RS485 USB TO RS485 (B) USB TO 4CH RS485 USB TO RS232/485/TTL USB TO RS232/485/TTL (B) USB TO 4CH RS485 (B) Customer Reviews Price Chip Model FT232RNL CH343G CH344L FT232RL with Isolation CH343G with Isolation CH344L with Isolation HOST PORT USB USB USB USB USB USB DEVICE PORT RS485 RS485 RS485 RS232? RS485? TTL (UART) RS232? RS485? TTL (UART) RS485 Temperature Range -15? ~ 70? -40 ~ 85? -40 ~ 85? -15? ~ 70? -15? ~ 70? -40 ~ 85? Humidity Range 5%RH ~ 95%RH 5%RH ~ 95%RH 5%RH ~ 95%RH 5%RH ~ 95%RH 5%RH ~ 95%RH 5%RH ~ 95%RH Operating System Mac, Linux, Android, Windows Windows, Mac, Linux, Android Windows, Mac, Linux, Android Mac, Linux, Android, Windows Mac, Linux, Android, Windows Windows, Mac, Linux, Android BAUD RATE 300bps ~ 921600bps 1200bps ~ 460800bps 1200bps ~ 460800bps 300bps ~ 2 Mbps 300 bps ~ 2 Mbps 1200bps ~ 460800bps LED INDICATORS PWR/TXD/RXD PWR/ACT/TXD/RXD PWR/ACT/TXD/RXD PWR/TXD/RXD PWR/TXD/RXD PWR/ACT/TXD/RXD USB TO RS485 USB TO RS485 (B) USB TO 4CH RS485 USB TO RS232/485/TTL USB TO RS232/485/TTL (B) USB TO 4CH RS485 (B) Customer Reviews Customer Reviews Customer Reviews Customer Reviews Customer Reviews Customer Reviews Price Price Price Price Price Price Chip Model Chip Model Chip Model Chip Model Chip Model Chip Model FT232RNL CH343G CH344L FT232RL with Isolation CH343G with Isolation CH344L with Isolation HOST PORT HOST PORT HOST PORT HOST PORT HOST PORT HOST PORT USB USB USB USB USB USB DEVICE PORT DEVICE