
EDPcable Engineering Team
30-Pin or 40-Pin eDP? First, Realize It's Not Your Choice to Make
30-pin and 40-pin are the two most common pin counts for eDP cables, but which one you use isn't really up to procurement — it's fixed by the screen and the mainboard interface. This article lays out how the two differ: typical lane count, the resolution range each covers, backlight and power arrangement, and why the same pin count isn't always interchangeable. It gives a simple decision path to work back from the panel datasheet and connector model to the right one, instead of ordering on a "30 is cheaper, 40 is higher-end" impression. Whether it lands on 30 or 40, confirming the specific model and pinout is the step you can't skip.
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