TECHTOO 4-Port USB to RS232 DB9 Serial Adapter Cable 1.5m (4.92ft) | Prolific Chipset

• 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.
• No Driver Needed - Plug and Play.
• Cable Length: 4.92ft (1.5m)
• 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.
• Prolific Chip Solution

• Install Drivers — Connect the TECHTOO USB to RS232 adapter to your computer's USB port. Download and install the Prolific chipset drivers for your specific operating system (Windows, macOS, or Linux) from the manufacturer's website or provided media.
• Connect Serial Devices — Attach your RS232 serial devices (e.g., modems, scanners, printers) to the four DB9 male ports on the adapter cable using standard serial cables. Ensure the gender of your device's port matches the adapter's port.
• Configure COM Ports — Once connected and drivers are installed, your computer will assign COM port numbers to each serial device. You can verify and manage these assignments in your system's Device Manager. The adapter maintains these assignments across reboots.
• Use with Software — Open your serial communication software (e.g., HyperTerminal, TeraTerm, or custom applications) and select the assigned COM port for each device. Configure baud rate and other serial parameters as required by your connected equipment.

Typical situations where TECHTOO 4-Port USB to RS232 DB9 Serial Adapter Cable 1.5m (4.92ft) | Prolific Chipset helps — illustrative scenarios, not customer reviews.