Moxa UPort 1110 1-Port RS-232 USB-to-Serial Converter - Reliable

In this review of the Moxa UPort 1110 - 1 Port RS-232 USB-to-Serial Converter, the bottom line is simple: it is for technicians, engineers, and anyone who needs a dependable single-port USB-to-RS232 interface for legacy serial devices. The reviewer found the adapter's strongest appeal is consistent, fast data transmission and broad OS driver support, which makes it an easy drop-in solution for serial printers, industrial controllers, and lab instruments. For users who need a compact, no-fuss adapter with visible activity LEDs, this unit stands out.

Key Features

• USB 2.0 compatibility: Provides up to a 12 Mbps USB data rate so the link between host and serial device is responsive and efficient.
• High baudrate support: Supports up to 921.6 kbps so it can handle high-speed serial communications required by many modern industrial devices.
• Activity LEDs: Built-in LEDs indicate USB connection and TxD/RxD activity so users can quickly verify link and traffic without software tools.
• Wide driver support: Drivers are available for Windows, WinCE, and Linux, making it likely to work with a wide range of host systems and embedded platforms.
• Mini DB9 to terminal adapter: The included mini DB9 female to terminal block adapter simplifies wiring to screw-terminal installations and reduces the need for additional parts.

Who It's For

The Moxa UPort 1110 is best for field technicians, automation engineers, and IT support staff who must connect a single RS-232 device to a modern USB host. Its robust baudrate ceiling and visible LEDs make it suitable for diagnosing communication issues and for replacing failing legacy ports on laptops or industrial PCs.

Those who need multiport solutions, integrated DIN-rail mounting, or specialized protocol offloading should look elsewhere; this model is deliberately a single-port converter intended for straightforward USB-to-serial bridging rather than rack-scale deployments.

Pros & Cons

Pros

• Solid, reliable serial functionality that works with a variety of serial devices as customers reported.
• High maximum baudrate and USB 2.0 support ensure fast, low-latency transfers for demanding applications.
• LED indicators for USB and TxD/RxD make troubleshooting and status checks immediate and intuitive.
• Driver availability for Windows, WinCE, and Linux increases compatibility across platforms.

Cons

• Single-port design limits use when multiple serial connections are required; users needing many ports will need a different model.
• No integrated DIN-rail or multiport casing means this is less suited for dense industrial rack installations.

Specifications

Product	UPort 1110 - 1 Port RS-232 USB-to-Serial Converter
Interface	USB 2.0 to RS-232
USB data rate	12 Mbps
Maximum baudrate	921.6 kbps
Driver support	Windows, WinCE, Linux
Adapter	Mini DB9 female to terminal block adapter included

Our Verdict

The Moxa UPort 1110 is a practical single-port USB-to-serial converter that delivers reliable, high-speed RS-232 connectivity and broad OS support. It is good value for technicians and engineers who need a dependable, easy-to-use adapter with diagnostic LEDs and simple wiring options, though organizations needing multiple ports should select a different model.

Frequently Asked Questions

Will this work with modern Windows and Linux systems?
Yes. Drivers are provided for Windows and Linux, and the device is designed for USB 2.0 hosts.

Can it handle high-speed serial communications?
Yes. The converter supports up to 921.6 kbps, suitable for many high-speed serial devices.

Is wiring difficult for screw-terminal systems?
No. The mini DB9 female to terminal block adapter included simplifies connections to screw-terminal wiring.