About the product
- The TECHTOO High-Speed 4-Port USB-to-DB9-Serial Adapter allows you to connect as many as four 9-pin serial devices to a computer or laptop with a USB Type-A port.
- Configuring and sharing data among multiple modems, GPS devices, cellphones, hand-held scanners, point-of-sale systems, touch screens, medical and scientific instruments, industrial process control devices and UPS systems easily
- USB to SERIAL RS232 DB9 Adapter (4-PORT): Add four RS232 serial ports to any laptop or desktop computer using a single USB port. The USB to Serial Converter is Powered by an Available USB Cable. No External Power Adapter is Required
- COM RETENTION: COM Port assignments maintained across reboot. The USB to serial rs232 adapter plug and play. Compatible for Windows 10 & macOS 10.X / 11.X.
- IMPORTANT Note: The TECHTOO 4 port RS232 USB Serial Adapter does not support devices such as serial mice that require an IRQ number or I/O address.
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