USB 2.0 Type-A to 1 x serial RS-232 DB9 4 m DeLOCK 66323

The DeLOCK USB 2.0 Type-A to 1 x serial RS-232 DB9 adapter (4 m) provides a reliable serial interface for connecting legacy and industrial equipment to modern computers. It converts a USB Type-A port into a single DB-9 RS-232 connector, enabling communication with printers, modems, meters, POS systems and other serial peripherals. The 4 metre cable length offers extended reach while the black cable and adapter housing suit professional environments. The adapter supports plug-and-play installation for quick setup on most systems.

Advantages

This adapter delivers a stable RS-232 connection from a standard USB Type-A port without requiring additional hardware. The 4 m cable length gives flexibility to position devices at a distance from the host computer. The DB-9 connector ensures compatibility with a wide range of serial equipment, and the black finish provides a discreet, professional appearance.

Suitable for

• Connecting serial printers and label printers
• Linking modems and telemetry devices
• Interfacing meters and measurement instruments
• Point-of-sale (POS) systems and barcode scanners
• Industrial IoT devices and legacy equipment

Key specifications

• Connector 1: USB Type-A
• Connector 2: DB-9 (RS-232)
• Cable length: 4 m
• Product colour: Black
• Brand: DELOCK, MPN: 66323, EAN: 4043619663231

How to use

Plug the USB Type-A end into an available USB port on the host computer and connect the DB-9 connector to the serial device. Most operating systems detect the adapter automatically and install required drivers; if prompted, follow on-screen instructions to complete driver installation. After successful installation, configure serial port settings (baud rate, parity, data bits, stop bits, flow control) in the host application to match the connected device.

Recommendations

For reliable communication, use shielded cable routing and avoid running the cable alongside high-voltage lines. Verify device-specific serial settings before data transmission and secure the DB-9 connector where applicable to prevent accidental disconnection.