Lekuo Industrial 4-Port RS422/RS485 Mini PCIe Card, EXAR 17V354, 600W Surge & Wide Temp for Embedded IOT Automation

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Engineered for mission-critical applications, this 4-port RS-422/485 Mini PCIe serial card delivers robust communication in industrial, retail, and embedded systems. Built on the proven EXAR 17V354 UART controller, it ensures stable data transmission across extreme temperatures and electrically noisy settingsbacked by two decades of I/O expansion expertise.

1. Automatic Direction Control

Eliminates manual wiring or software toggling; ideal for half-duplex RS-485 networks in automation.

2. Industrial-Grade Protection

600W surge + 15kV ESD on every port safeguards against lightning strikes and static discharge.

3. Wide Operating Temperature (-40°C to +85°C)

Functions reliably in outdoor kiosks, factory floors, and vehicle-mounted systems.

4. Plug-and-Play Driver Support

Official drivers for Windows (XP to 11) and Linux (including Kylin & UnionTech); easy integration.

5. Long-Distance Communication

Transmits up to 1.2 km at 300 bpsperfect for distributed sensor networks.

6. Compact Mini PCIe Form Factor

Fits space-constrained SBCs, thin clients, and embedded PCs without external brackets.

7. Point-to-Multipoint Capability

Each port supports up to 32 devicesreducing hardware count in large-scale deployments.