Industrial Professional USB Serial Adapter RS232 FTDI - Reliable RS232

Our review of the Industrial Professional USB Serial Adapter RS232 FTDI finds it best suited for technicians and engineers who need a compact, dependable way to add a legacy RS232 DB9 Male port to modern systems. The clearest reason to buy is its practical combination of a three foot cable and a selectable 5 Volt output, which removes the need for a separate power supply when interfacing with low-voltage peripherals. In testing it behaved predictably on current Windows and Linux systems, and the industrial focus is obvious in the supported signal set and regulatory approvals.

Key Features

• DB9 Male Port: Adds a 3ft. RS232 DB9 Male connection so legacy devices can plug directly into contemporary USB-only machines without adapters.
• Selectable 5 Volt Out: The jumper-selectable 5 Volt output supplies power to small peripherals and simplifies bench wiring when external power is inconvenient.
• Complete RS232 Signals: Exposes TxD, RxD, RTS, CTS, DTR, DSR, DCD and GND so hardware handshaking and diagnostic signals remain available for industrial equipment.
• FTDI Chipset Compatibility: Uses an FTDI-based interface known for stable serial drivers, improving compatibility across operating systems.
• Regulatory Compliance: Fully RoHS compliant and CE and FCC approved, offering reassurance for commercial and lab environments.

Who It's For

This adapter is aimed at field service technicians, lab engineers, and hobbyists who maintain serial equipment such as measurement instruments, legacy industrial controllers, and networking gear that still rely on RS232 ports. It is especially useful where a short, fixed-length cable and the option for a 5 Volt supply reduce clutter and setup time.

Those who primarily need long cable runs, intrinsic isolation for harsh electrical environments, or specialized industrial certifications beyond CE and FCC may want to consider other adapters. It is not a substitute for isolated or surge-protected converters when working on high-voltage lines or noisy industrial power systems.

Pros & Cons

Pros

• Provides a ready-made 3ft. DB9 Male RS232 connection that is convenient for bench use and short cabling tasks.
• Selectable 5 Volt output adds flexibility for powering small devices without extra wiring.
• Exposes the full RS232 signal set so hardware flow control and status lines remain usable.
• Driver support across Windows 11, Windows 10, Windows 8, and Linux ensures broad compatibility.

Cons

• The fixed 3ft. cable length limits long-distance connections without adding external extension cables.
• Not a specialized isolated adapter, so it may not suit environments requiring galvanic isolation.

Specifications

Product type	USB to RS232 serial adapter
Cable length	3ft.
Connector	RS232 DB9 Male
Signals supported	TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
Power option	Selectable 5 Volt output via jumper
Regulatory	RoHS compliant, CE and FCC approved
OS support	Windows 11, Windows 10, Windows 8, Linux

Our Verdict

The Industrial Professional USB Serial Adapter RS232 FTDI is a practical, value-minded choice for anyone who needs dependable serial connectivity with the convenience of a 3ft. cable and an optional 5 Volt output. It excels for bench work, repairs, and connecting legacy devices to modern systems, offering broad OS support and full RS232 signal access without unnecessary extras.

Frequently Asked Questions

Does this adapter provide hardware handshake lines?
Yes, it exposes RTS, CTS, DTR, DSR and DCD in addition to TxD, RxD and GND so hardware flow control and status lines are available.

Can the adapter power peripheral devices?
It has a jumper-selectable 5 Volt output intended for small peripherals, but it is not a high-current power supply.

Which operating systems are supported?
The adapter is supported by Windows 11, Windows 10, Windows 8 and Linux using standard FTDI drivers.