PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication

"Industrial-Grade Stability & Safety", Equipped with 3KV opto-isolation & transient voltage suppression, effectively blocking ground loop interference and protecting against surges/lightning strikes. Built-in isolated DC/DC converter ensures zero electrical interference for RS-485/422 networks.
"AX99100 High-Performance Chipset", Features advanced AX99100 PCIe-to-serial controller for ultra-stable operation, ultra-low power consumption (0.5W), and broad compatibility. Achieves speeds up to 921.6Kbps with automatic flow control.
"Universal PCIe Compatibility", Supports all PCI-Express slots (x1/x4/x8/x16) via gold-plated contacts with reinforced deposition process. Tested across Windows 10/8.1/8/7/XP (32/64-bit) for seamless integration.
"All-in-One Connectivity Kit", Includes 1-to-4 serial cable + screw terminal blocks for effortless multi-device wiring. RS-485/422 ports support baud rates from 300bps to 120Kbps, ideal for PLCs, sensors, and industrial automation.
"Robust Data Integrity Assurance", Dual-layer protection: Galvanic isolation shields host devices, while TVS diodes absorb voltage spikes. Perfect for harsh environments like factory floors, SCADA systems, and energy monitoring.