DeLOCK M.2 Card to 4 x Serial RS-232 DB9 PCIe 2.1

The DeLOCK M.2 Card to 4 x Serial RS-232 DB9 PCIe 2.1 expands a PC with four external RS-232 ports. The compact M.2 card (80 x 22 x 8 mm) connects via the PCIe-compatible M.2 slot and includes the required slot brackets and RS-232 cables for installation into a computer case. It is designed to provide reliable serial connectivity for industrial and legacy devices and supports Windows 10 and Windows Server 2016/2019.

Advantages

This M.2 to serial card delivers four DB9 RS-232 ports in a small form factor, allowing integration of multiple serial devices without occupying a full-size PCIe slot. Included accessories (slot brackets and serial cables) simplify installation into standard PC chassis. The M.2 interface ensures direct connection to the motherboard with PCIe 2.1 compatibility, and the card is suitable for systems that require legacy serial communication.

Suitable for

Key specifications

How to use

Install the M.2 card into a compatible M.2 slot on the motherboard following the motherboard manufacturer’s instructions. Secure the external connections using the included slot brackets and connect the provided RS-232 cables from the DB9 ports to the external devices. After physical installation, install any required drivers for Windows 10 or Windows Server 2016/2019 and verify COM port assignments in the operating system before using serial applications.

Recommendations

Use shielded RS-232 cables where possible and keep cable runs at reasonable lengths to reduce interference. Verify driver compatibility with your system and back up configuration settings for devices that rely on specific COM port numbers.