While VM810C50A-D features 5.0 in. TFT display with WVGA resolution and resistive touchscreen, VM810C50A-N features 40-pin FFC interface. Latter is used to connect 4.3/5.0 in. LCD and 4-wire resistive touchscreen interface. Both models act as SPI slaves connecting to specified system MCU through SPI interface and support FT810 series Embedded Video Engine (EVE) ICs. Features include micro speaker, audio power amp, 3-stage audio filter, audio line out option, and LCD backlight control.