StarTech.com 3ft USB to Serial Cable, DB9 Male RS232 to USB Converter, Prolific IC
£21.22 inc VAT
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About This Item
- Prolific PL2303RA chipset with USB 2.0 to DB-9 serial interface
- 921.6 Kbps baud rate with 512-byte FIFO buffer
- 0.91 m straight male-to-male cable
- Supports Windows, macOS, Linux and Chrome OS
- CE and RoHS compliance with 0–80°C operating temperature
- Data bits 5-8, stop bits 1/1.5/2 and multiple parity options
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StarTech.com 3ft (1m) USB to Serial Cable | RS232 DB9 to USB Converter
The StarTech.com 3ft (1m) USB to Serial Cable, DB9 Male RS232 to USB Converter, Prolific IC, USB to Serial Adapter for PLC/Printer/Scanner/Switch, USB to COM Port Adapter, Windows/Mac is a reliable solution for connecting legacy serial devices to modern computers. It is designed for IT professionals, industrial engineers, and office administrators who need to interface with RS-232 equipment. This adapter uses the trusted Prolific chipset to ensure stable data transmission. It bridges the gap between current USB ports and older serial peripherals.
StarTech.com 3ft (1m) USB to Serial Cable, DB9 Male RS232 to USB Converter, Prolific IC, USB to Serial Adapter for PLC/Printer/Scanner/Switch, USB to COM Port Adapter, Windows/Mac
This cable supports high-speed data transfer up to 921.6 Kbps. It connects via a standard USB Type-A port. The 0.91m cable length offers flexibility in tight spaces. It is ideal for PLCs, printers, barcode readers, and AV equipment. The design is compact and robust for daily use.
Product Specifications
| Metric | Spec. |
|---|---|
| Baud Rate | 921.6 Kbit/s |
| Cable Length | 0.91 m (3 ft) |
| Chipset | Prolific PL2303RA |
| Connectors | DB-9 Male to USB Type-A Male |
| USB Version | 2.0 |
| Operating Systems | Windows, macOS, Linux, Chrome OS |
High-Speed Serial Communication
The adapter supports a baud rate of 921.6 Kbit/s. This allows for fast data transfer between your computer and serial devices. It handles standard flow control options like RTS/CTS and XON/XOFF. The 512-byte FIFO buffer helps manage data bursts efficiently. This ensures smooth communication with industrial PLCs and scanners.
Broad OS Compatibility
This cable works with multiple operating systems. It supports Windows 7 through 11, including Server editions. It is also compatible with macOS 10.11 to Ventura and specific Linux LTS versions. Chrome OS is supported too. This wide range reduces setup time across mixed IT environments.
Reliable Prolific Chipset
The built-in Prolific PL2303RA chipset provides proven reliability. It offers stable driver performance for serial connectivity. This chipset is widely recognised in industrial and commercial applications. It helps prevent communication errors during critical operations. Note that driver installation may be required; check the OS version first.
Compact and Durable Design
The cable measures 0.91m in length, balancing reach and manageability. Its small connectors fit into tight spaces behind equipment racks. The black PVC jacket resists daily wear. Operating temperature ranges from 0°C to 80°C. Storage tolerance is from -20°C to 100°C. This suits various UK warehouse or office conditions.
Box contents
- 1 x StarTech.com USB to Serial Adapter Cable (0.91m)
- 1 x User Manual
Check before you buy
- Confirm your device has a free USB Type-A port for connection.
- Verify your operating system version matches the supported list.
- Ensure your legacy device uses a standard DB-9 RS-232 interface.
- Check if driver installation is permitted on your corporate network.
Common questions
Q: Does this cable require an external power source?
A: No, it draws power directly from the USB port of your computer.
Q: Is the DB-9 connector male or female?
A: The DB-9 connector is male, designed to plug into a female port on your device.
Q: Can I use this with a modern laptop lacking a serial port?
A: Yes, it adds a serial COM port via any available USB Type-A port.
Q: Are drivers included for Linux systems?
A: Support is listed for Linux 4.15.x LTS versions; check your distribution for driver availability.
Q: What is the maximum cable length for reliable data transfer?
A: This specific model is 0.91m; for longer runs, verify signal integrity with your setup.
Summary & warranty
This StarTech.com adapter is ideal for professionals needing to connect legacy RS-232 devices to modern computers. It suits IT support, industrial maintenance, and office setups. The Prolific chipset and broad OS support ensure reliable performance. Covered by the applicable manufacturer warranty.

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