M.2 (B+M Key) to 4-Port RS422/RS485 Serial Adapter Card
Expand your mini PC or embedded system with 4 independent RS422/RS485 serial ports — all through a single M.2 (B+M Key) slot. Purpose-built for industrial environments where reliable, long-distance serial communication is essential.
Dual-Mode RS422 & RS485 Support
Each of the 4 ports supports both RS422 and RS485 modes, giving you the flexibility to connect a wide range of industrial devices — PLCs, sensors, meters, and more — without additional converters.
4 Independent Serial Ports
All 4 ports operate independently and simultaneously, enabling multi-device communication without signal interference. Ideal for SCADA systems, CNC machines, and data acquisition setups.
Compact M.2 Form Factor
Designed to fit standard M.2 B+M Key slots found in mini PCs, NUCs, and embedded boards. The compact size makes it perfect for space-constrained deployments without sacrificing performance.
Easy Installation — Plug and Play
Simply insert the card into your M.2 slot and install the driver. No complex configuration required. Supports Windows, Linux, and other mainstream operating systems right out of the box.
Wide Device Compatibility
Compatible with a broad range of industrial equipment and serial devices. Works seamlessly with PLCs, barcode scanners, industrial cameras, GPS modules, and other RS422/RS485-enabled hardware.
Built for Industrial Environments
Engineered for stable signal transmission in electrically noisy environments. Supports long-distance communication up to 1200 meters (RS485 mode), making it suitable for factory floors and outdoor deployments.
Specifications
- Interface: M.2 B+M Key
- Serial Ports: 4 x RS422 / RS485
- Communication Mode: Full-duplex (RS422) / Half-duplex (RS485)
- OS Support: Windows, Linux
- Weight: 181g
- SKU: MW84Z41
- Origin: China
Package Contents
Each package includes the M.2 RS422/RS485 serial adapter card and all necessary accessories for installation. Ready to use right out of the box.