InLine USB 2.0 to 2x Serial Adapter Cable USB Type A to 2x 9 Pin SubD male 1.5m

The InLine USB 2.0 to 2x Serial Adapter Cable (33305M) adds two RS232 serial ports to a computer via a single USB connection. The cable is 1.5 m long and terminates in two 9-pin Sub-D male connectors, enabling connection of legacy serial devices to modern systems while maintaining reliable data transfer. Black finish.

Advantages

This adapter provides two independent RS232 ports over USB 2.0, simplifying connection of serial peripherals without opening the computer. The 1.5 m cable length offers flexible placement of devices, and the standard 9-pin Sub-D male connectors ensure broad compatibility with existing serial equipment. The product is plug-in after software installation and is compact for desktop or mobile use.

Suitable for

• Connecting serial devices such as modems, industrial controllers, and POS terminals to a computer
• Adding extra RS232 ports for legacy hardware on modern PCs and laptops
• Use in offices, workshops, or field service where serial interfaces are required

Key specifications

• Interface: USB 2.0 to 2 × RS232 (9-pin Sub-D male)
• Cable length: 1.5 m
• Brand: InLine
• Model / MPN: 33305M
• EAN: 4043718283538
• Color: Black

How to use

First install the driver software provided by the manufacturer or available from the vendor website. After the software installation is complete, connect the adapter's USB plug to an available USB port on your computer and attach your RS232 devices to the two 9-pin Sub-D connectors. Verify device detection in your operating system's device manager and configure serial port settings (baud rate, parity, stop bits) in your application as required.

Recommendations

Install drivers before connecting the adapter to the USB port to ensure correct detection. For reliable operation, avoid excessive cable strain and keep connectors clean; if used in industrial environments, verify grounding and shielding to reduce interference.