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Main image of PCIe to 4-Port RS-485/422 Serial Card, High-Speed 9-Pin DB9 COM Port Expansion with Surge/Lightning Protection, Voltage Suppression Terminal Blocks

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PCIe to 4-Port RS-485/422 Serial Card, High-Speed 9-Pin DB9 COM Port Expansion with Surge/Lightning Protection, Voltage Suppression Terminal Blocks

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"Industrial-Grade Stability & Efficiency", Powered by the AX99100 high-performance chipset, this PCIe to RS-422/485 card ensures ultra-stable operation, enhanced compatibility, and low power consumption. Features TVS (Transient Voltage Suppression) protection to guard against surges, lightning, and voltage spikes.

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"Industrial-Grade Stability & Efficiency", Powered by the AX99100 high-performance chipset, this PCIe to RS-422/485 card ensures ultra-stable operation, enhanced compatibility, and low power consumption. Features TVS (Transient Voltage Suppression) protection to guard against surges, lightning, and voltage spikes.

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First Listed on Newegg	June 17, 2026

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Item#: 9SIC73VKZJ7610