USB to RS232/RS485/RS422 8-Port Serial Hub - Industrial DIN Mount

In this review of the 8-port USB to serial hub, the bottom line is simple: this is a purpose-built solution for engineers and integrators who need multiple reliable COM ports in industrial environments. The hub converts a single USB 2.0 connection into eight individually configurable RS232/RS422/RS485 ports, and the single biggest reason to buy it is the combination of rugged construction and flexible power options that keep installations running in harsh conditions. The review notes real-world strengths like 15kV ESD protection, metal IP30 housing, and screw-lock connectors that make it suitable for mission-critical serial equipment.

Key Features

• Eight configurable serial ports: Each DB9 port can be set to RS232, RS422, or RS485 (2-wire/4-wire) to support a wide range of legacy and industrial devices.
• Rugged industrial design: Metal housing with an IP30 rating and locking connectors helps protect connections and reduce downtime in harsher environments.
• High ESD protection: Built-in 15kV surge protection offers improved resilience against electrostatic events common in factory and field installations.
• Flexible power options: The hub can run from a 12V screw-locking adapter or from 5V via USB, and per-port pin 9 can be set to 5V, 12V, or 0V for device power flexibility.
• Mounting versatility: Built-in mounting ears and included DIN rail brackets allow secure installation on desks, walls, or DIN rails.
• Wide OS compatibility: Works with current and legacy Windows, Linux, macOS, and embedded platforms for broad deployment options.

Who It's For

This hub is aimed at system integrators, industrial automation technicians, and IT professionals who need to add multiple COM ports for devices such as barcode scanners, PLCs, sensors, printers, or LED signage. It suits installations where environmental robustness and connection security matter, for example in manufacturing floors, kiosks, or control cabinets.

It is less suited for casual home users who only need one or two serial connections or who do not require DIN rail mounting or elevated ESD protection; those users will find simpler single-port adapters more cost effective.

Pros & Cons

Pros

• Eight independently configurable serial ports provide maximum flexibility for mixed-protocol device fleets.
• Industrial metal housing, screw-lock USB cable, and 15kV ESD protection increase reliability in harsh environments.
• Multiple mounting options and flexible per-port power settings simplify field installations and wiring.
• Broad OS support eases integration with legacy and modern systems.

Cons

• The unit is a specialized industrial product and is overkill for simple, occasional serial needs.
• IP30 offers protection for industrial enclosures but is not sealed for outdoor exposure.

Specifications

Product type	USB 2.0 to 8-port DB9 serial hub
Serial protocols	RS232, RS422, RS485 (2-wire/4-wire)
Baud rate	Up to 921.6Kbps
Protection	15kV ESD surge protection
Housing	Metal, IP30 rated
Mounting	Desk, wall, or DIN rail (included brackets)
Power	12V screw-lock adapter or 5V USB input; per-port pin 9 selectable 5V/12V/0V

Our Verdict

For technicians who need reliable multiport serial connectivity in industrial settings, this metal 8-port hub delivers strong value through durable construction, flexible power and mounting options, and robust ESD protection. It is a solid choice when multiple COM ports must be managed from a single USB connection, though its industrial feature set is more than most casual users require.

Frequently Asked Questions

Can the hub be powered from USB alone?
Yes, it can run from 5V via the USB connection, but using the 12V screw-lock adapter is required to enable 12V per-port output.

Are the serial ports configurable per port?
Yes, each DB9 port can be independently set to RS232, RS422, or RS485 (2-wire/4-wire) to match connected devices.

Is this suitable for harsh environments?
The metal IP30 housing and 15kV ESD protection make it suitable for many industrial indoor environments; it is not weatherproof for outdoor exposure.