Automatic transmit and receive control for 2-wire RS-485 half-duplex mode Baud Rate from 300bps up to 921.6Kbps supported Transmit (TxD) and Receive (RxD) LEDS on unit for visual reference Self-powered. One switching power adapter 5V 2A included OS Support: Windows 7, Windows 8, Windows 10, Windows 11, Linux and Mac OS 10.X

USB-4COMi-M USB to Quad RS-422/485 Adapter for Windows 7 and Server 2003/2008, USB to four serial port converter with DB9 (9-pin male) connectors, metal housing. (RS-422/RS-485), Comes with a USB cable & power supply (120 volt, 60 hz).

Features and Specifications:

• Metal Case
• Optionally DIN-rail mountable with additional mounting kit.
• 4 RS422/485 ports
• Included external power supply
• Number of ports: 4
• Speed: Up to 921.6 Kbpz
• RS422/485 signals: RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND RS485 Data+/-, GND
• Power: External power supply 5V DC required. Adapter included, 12V not possible.
• Drivers: Windows 98, ME, 2000, XP, 2003 Server and Vista Linux (Kernel 2.4 and up built-in)
• Connectors: 4 DB9 Male
• Dimensions: 167 x 99 x 29 mm (WxLxH) or 189 x 102 x 30 mm with DB9 connectors and ears.