Serial Port Cards

7 products indexed • Avg rating 4.81 • Avg price $192

Serial port cards provide RS‑232/422/485 connectivity for desktops and industrial PCs, including PCIe and USB-to-serial adapters for legacy device integration. The category spans budget to premium options (avg price ~(price varies)) from brands like Moxa and StarTech, with an average user rating of 4.81 across seven products