1. Enhanced version is more powerful. Compared to the basic display, the display adds some features: support for built-in RTC, support for saving data to flash memory, support for GPIO, larger flash memory capacity, and larger CPU clock. The Enhanced Series is available in 7 sizes ranging from a generic 2.4inch to 7.0inch. 2. Enhanced NX3224K028 is a powerful 2.8inch HMI TFT display with 16MB Flash data storage space, 1024 bytes EEPROM, 3584 bytes RAM. With GPIO support, you can now use to control external devices. 3. is a seamless Human Machine Interface (HMI) solution that provides a control and visualization interface between a human and a process, machine, application or device. It is the best solution to replace traditional LCD and LED digital tubes. Color: Black Material: plastic Product Description Support built-in RTC Support GPIO SD card interface: maximum support 32G Micro-TF/SD card (FAT32 file format) Flash data storage space: 16MB EEPROM: 1024 bytes Memory: 3584 bytes Instruction buffer: 1024 bytes Color: 65K (65536) colors Resolution: 320x240 pixels Adjustable brightness: 0~180 nit, the adjustment interval is 1% Specification Visual area: 48.96mm(L)x36.72mm(W) Layout size: 74.4mm(L)x42.72mm(W)x5.8mm(H) Touch type: Resistive Backlight: LED Backlight life (average): 30,000 hours Recommended power supply: 5V 500mA DC Package Contents: 2 x 2.8inch Enhanced HMI Display 2 supply test board 2 x 4-pin grove cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.