A 4x4 Matrix Membrane Keypad is a ultra-thin, flexible input device designed for microcontroller data entry and menu navigation. Arranged in a grid of 4 rows and 4 columns, pressing any of its 16 tactile keys connects a specific row line to a column line. The flexible ribbon cable terminates in a standard 8-pin female Dupont connector, allowing seamless connection to digital I/O pins without requiring 16 individual inputs. Its self-adhesive backing makes it easy to mount onto custom project enclosures.

This product is featured by Famephase Electronic Accessories as an ideal user-input interface for security keypads, access control systems, combination locks, and interactive DIY projects.