USB to Serial Adapter 2-Port Industrial - Wall Mount, DIN Rail

In this review of the StarTech USB to Serial Adapter 2-Port Industrial model, the bottom line is clear: this adapter is for technicians and integrators who need a rugged, compact way to add reliable RS232 ports from a single USB connection. The reviewer found the adapter excels where durability and consistent COM port assignments matter, making it a practical choice for industrial monitoring, field data collection, and network appliance connections. It is not aimed at casual users who need only occasional serial access.

Key Features

• Two RS232 ports: Converts a single USB connection into two DB9 serial ports so multiple serial devices can be connected without adding PCI cards.
• Rugged metal construction: Heavy-duty housing and wall-mount brackets protect the adapter in harsher environments and reduce risk of damage.
• DIN Rail and wall mounting: Included DIN Rail clips and wall-mountable design let installers secure the unit neatly in control cabinets or on walls.
• COM port retention: Retains assigned COM port values across reboots so device mappings remain stable for automation and data-collection software.
• High baud support: Supports baud rates up to 921.6 Kbps, providing headroom for faster serial communications when required.
• USB powered convenience: Draws power from the host USB port, eliminating the need for an external power adapter for most use scenarios.

Who It's For

The adapter is aimed at IT professionals, industrial automation technicians, and field engineers who need dependable serial connectivity in control rooms, factories, or remote installations. Its metal housing, COM port persistence, and mounting options suit environments where reliability and neat installation matter.

It is less suitable for casual hobbyists who rarely use serial devices or for installations that require more than two serial ports; those users should consider multiport solutions or internal expansion cards when rack or PCI expansion is available.

Pros & Cons

Pros

• Sturdy metal build and included mounting brackets make it ideal for industrial use.
• Reliable COM port retention keeps device assignments stable after reboots and reconnections.
• Good compatibility with Linux and network appliances as reported by users, and simple USB-powered installation.

Cons

• Port numbering may appear non-sequential for some systems, which can require attention during setup.

Specifications

Our Verdict

The StarTech 2-port industrial USB to serial adapter is a sensible purchase for professionals who need robust, mountable serial connectivity and dependable COM port mapping. It delivers good durability, simple installation, and reliable operation for industrial and field use, making it a worthwhile value for environments that demand stability over cosmetic or consumer features.

Frequently Asked Questions

Does this adapter keep COM assignments after a reboot?
Yes. The adapter retains assigned COM port values so the same ports are reassigned after reboots.

Can it be mounted on DIN Rail?
Yes. The unit ships with top-hat DIN Rail clips and also includes wall-mount brackets.

Is the adapter USB powered or does it need an external supply?
It is USB powered from the host computer and generally does not require an external power adapter.