This is a TFT full color touch screen, which is suitable for 3D printers. Reserves USB, SD and WIFI slot, easily operate. It is fully compatible with for Marlin/ Smoothieware/ Repetier firmware, plug and play. Features: High Definition Display: 3.2inch full color TFT display screen, HD display, provides you a good display effect. Good Compatibility: fits well with for Marlin/ Smoothieware/ Repetier firmware. Support U Disk & SD Card: USB slot and SD slot allow full speed transmission. Reserve WIFI Interface: support WIFI function by adding WIFI module. (PS: WIFI module is NOT included.) Easy to Use: no need to modify the main program, plug and play! More Function Support: Breakpoint Printing, Power Outage Printing, Filament Detect, Auto-OFF after Printing Finished, etc. Specification: Color: As the pictures show Material: Tempered Glass + PCB Screen: 3.2IN TFT Color Touch Screen Micro Processor: 32bit STM32 Processor Update Method: Update via SD files Support File Format: Gcode Compatible Firmware: for Marlin/ Smoothieware/ Repetier SD Card (NOT Included): Support U Disk (NOT Included): Support Support Extended Module (NOT Included): WIFI, Breakpoint Printing, Power Outage Printing, Filament Detect, Auto-OFF after Printing Finished Size: Approx. 110 x 65mm / 4.3 x 2.6in Hole Distance: Approx. 102 x 57mm / 4 x 2.2in Package Weight: 134g Package list: 1 * 3.2IN Display Screen 1 * Cable Note: Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 1、High Definition Display: 3.2inch full color TFT display screen, HD display, provides you a good display effect. 2、Good Compatibility: fits well with for Marlin/ Smoothieware/ Repetier firmware. 3、Support U Disk & SD Card: USB slot and SD slot allow full speed transmission. 4、Reserve WIFI Interface: support WIFI function by adding WIFI module. (PS: WIFI module is NOT included.) 5、Easy to Use: no need to modify the main program, plug and play!