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Add extra COM ports to your laptop or desktop computer quickly and easily. Thi... Add 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. Supports multiple serial protocols The versatile serial adapter... more

Connect an RS232 (DB9) peripheral to your USB-C device Connect an RS232 (DB9) peripheral to your USB-C device more

Startech 4-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Pr... Startech 4-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection - USB to Serial Adapter - Add four COM ports supporting three serial protocols to easily connect serial devices to your computer through USB with 15 kV ESD... more

HOST COMPATIBILITY: Driverless setup for easy install; Tested on major operati... HOST COMPATIBILITY: Driverless setup for easy install; Tested on major operating systems, including Windows 7 and up, macOS 10.11 and up, Linux 2.6 and up; USB bus powered; Backed for 2-years TECH SPECS: 921.6 Kbps baud 512 byte FIFO Data bits of... more

Standard and low profile/half-height bracket included to ensure fitment in any... Standard and low profile/half-height bracket included to ensure fitment in any system Extensive list of OS support and Microsoft WHQL certified drivers makes for maximum compatibility and simple installation Direct connection from the motherboard... more