USB to 4 Port Serial Converter Lindy 42675

The Lindy USB to 4 Port Serial Converter (model 42675) enables connection of up to four RS232 9‑way serial devices to a single USB Type‑A port. The converter uses cabled DB9 connectors that provide flexible placement compared with box‑style adapters. It is intended for use with legacy serial equipment such as barcode scanners and industrial devices in environments including retail, IT and digital signage. The adapter is USB bus‑powered, compact and certified to CE, REACH and RoHS standards.

Advantages

The converter supports four independent serial ports via one USB connection, reducing the need for multiple host interfaces. With a 0.94 m cable and lightweight design (200 g), it is easy to position and integrate into existing setups. Compatibility with Windows and Linux operating systems and USB bus power allows fast, simple installation without extra power supplies. Connector dimensions are provided for straightforward mechanical planning.

Suitable for

• Connecting barcode scanners to modern PCs and notebooks
• Linking industrial controllers and RS232 sensors to USB hosts
• Serial peripherals in retail POS and digital signage systems
• IT environments that require multiple serial COM ports from one USB port

Key specifications

• Manufacturer: Lindy
• Model (MPN): 42675
• EAN: 4002888426756
• Interface: USB Type‑A to 4 × RS232 DB9 (9‑way)
• Cable length: 0.94 m
• Connector dimensions (USB Type‑A): 15 × 35 × 8 mm
• Connector dimensions (serial ports): 33 × 58 × 16 mm
• Weight: 200 g
• Power: USB bus‑powered (no external PSU required)
• Operating systems: Windows and Linux (driver support required where applicable)
• Certifications: CE, REACH, RoHS

How to use

Connect the USB Type‑A plug to an available USB port on your computer. Position the cabled DB9 serial connectors close to the devices you need to attach and plug each serial cable into the respective RS232 device. If required by your operating system, install the provided or downloaded drivers, then verify that four COM ports appear in the system device manager. No external power supply is needed as the unit draws power from the USB host.

Usage recommendations

For reliable communication, use standard RS232‑compliant devices and quality DB9 cables. Keep cable runs as short as practical to minimise noise and signal degradation; if using in industrial environments, route cables away from high‑power or high‑frequency sources. Confirm driver compatibility with your OS version before deployment.