Add four ports supporting three serial protocols to easily connect serial devices to your computer through USB with 15kV ESD protection<br/><br/>Add four extra COM ports to your laptop or desktop computer quickly and easily. This USB to RS232/422/485 serial adapter lets you connect to your serial devices through an external USB port.<br/><br/>Supports multiple serial protocols<br/><br/>The versatile serial adapter converts a single USB port into four RS232/RS422/RS485 serial ports enabling you to connect monitor and control a wide range of serial devices such as sensors barcode scanners and LED signage. It supports four operating modes including RS232 RS422 4-wire and 2-wire RS485.<br/><br/>Ideal for harsh environments<br/><br/>With its rugged IP30-rated metal hub housing the serial adapter is built to meet the extreme demands of harsh and mission-critical environments. It provides 15 kV ESD protection which helps to reduce downtime in industrial environments where communications lines are more prone to noise emissions or sudden spikes in voltage.<br/><br/>The serial adapter offers flexible mounting options with a built-in wall-mounting bracket and included DIN rail mounting kit. It also features a screw-locking host connection plus a screw-locking USB-B connector on the included USB cable to prevent accidental disconnections.<br/><br/>Fast data transfers<br/><br/>The serial adapter is equipped with high-speed UARTs providing fast data rates of up to 921Kbps in RS232/422/485operating modes.<br/><br/>The ICUSB234854I is backed by a StarTech.com 2-year warranty and free lifetime technical support.<br/><br/>The StarTech.com Advantage<br/><br/>- RUGGED RELIABLE: This industrial metal USB to serial adapter hub adds 4 RS-232/422/485 ports 1 USB 2.0 port w/ 15kV ESD surge protection (level 4) IP30 rating locking connectors on all ports<br/>- 4 SERIAL PORTS: The ports on this USB to serial converter can be individually configured to RS232 RS422 or RS485 (2wire/4wire) at baud rates up to 921.6Kbps for devices like barcode scanners/printers<br/>- MOUNTING OPTIONS: This metal mountable 4-port serial hub w/ 6ft (1.8 m) screw-lock USB cable incl. installs securely to a desk wall or DIN rail using the built-in mounting ears incl. DIN brackets