The accessory converts a USB port into an RS232 DB9 serial connection, allowing legacy equipment to communicate with modern machines. Technicians and field engineers gain a straightforward way to run diagnostics, configure instruments and keep serial peripherals working. Is the compact, USB-powered StarTech USB to Serial Adapter the dependable bridge between older kit and new computers?
⚡ At a Glance
- • Interface: USB-A to DB9 RS232, single serial port, male-to-male configuration
- • Best for: Technicians and engineers needing to connect or maintain legacy serial equipment
- • Not ideal for: Users requiring multiple simultaneous serial connections or integrated hands-free features
Converts a USB port to an RS232 DB9 serial port using a Prolific chipset while supporting baud rates up to 921.6Kbps. USB-powered, lightweight cable with broad Windows, Mac and Linux compatibility and a two-year warranty.
Portable Field Use - with a USB-powered, lightweight cable design
The cable draws power directly from a host USB port so no external power brick is needed, and the 17in (43cm) length keeps the connection tidy. The lightweight construction is intended to fit into tool cases and laptop bags for frequent transit.
Quickly connect lab gear or service equipment on site without extra power or bulky adapters, ideal for engineers who move between locations.
Broad OS Compatibility - thanks to USB 1.0/2.0 support and available drivers
Compatibility with USB 1.0 and 2.0 host ports and driver availability for Windows, Mac and Linux ensure the adapter works across common systems. User reports confirm straightforward driver installation and consistent cross-platform behaviour.
Use the same cable across different machines and operating systems, reducing the need to carry multiple adapters or hunt for drivers.
Faster Serial Transfers - with support for baud rates up to 921.6Kbps
The adapter supports a maximum Baud Rate of 921.6Kbps, allowing higher-speed serial communications where supported by connected equipment. The Prolific chipset helps maintain stable throughput and reliable handshaking.
Complete configuration tasks and data transfers more quickly than with lower-speed adapters, useful when working with telemetry or device firmware updates.
✨ The 4 Key Reasons for StarTech USB to Serial Adapter
- High Baud Rate - Enables faster serial data transfers up to 921.6Kbps for quicker diagnostics and uploads
- USB-Powered Cable - No external power required, simple use with laptops and field kit
- Wide OS Compatibility - Works with Windows, Mac and Linux, reducing driver headaches
- Two-Year Warranty & Lifetime Support - Long-term technical support and warranty cover provide reassurance
📋 Technical Details at a Glance
- Category: Personal Computer accessory
- Interface: USB-A to DB9 RS232
- Ports: 1 x DB9 RS232 (male) to 1 x USB-A (male)
- Cable length: 17in (43cm)
- Chipset: Prolific
❓ Frequently Asked Questions
Q: Will this work with my Mac or Linux machine?
A: Yes. The adapter is compatible with Windows, Mac and Linux systems and user feedback notes available drivers for multiple operating systems.
Q: Does the adapter need an external power source?
A: No. The cable is powered directly by the host USB port so extra power supplies are not required.
Q: Is there support if something goes wrong?
A: Yes. The product is backed by a two-year StarTech.com warranty and free lifetime technical support, with user reviews reporting reliable long-term performance.
🏆 Our Verdict
Well suited to technicians, engineers and IT staff who need dependable RS232 connections for legacy equipment. Compact, USB-powered cable combines broad OS compatibility, Prolific chipset reliability and high baud-rate support for steady communications. Robust build quality plus two-year warranty and lifetime technical support make it a sensible long-term investment.
