Features: This wifi module is created and developed by Makerbase team,which is capable of high transmission rate and stability . And, it is compatible greatly with MKS Robin mainboard. It not only supports document transfer via APP- ,but also supports Cloud printing- and firmware upgrading. The MKS Robin WIFI module based-on ESP8266 chip developed by R&D-personnel of the maker-base. Small size, fast- transmission speed realize cloud service printing Specifications: Name: MKS Robin-WIFI Module Size:approx 25x23mm/0.98x0.91in Connection module: MKS Robin Touch-Screen User configuration: cloud server- Androids iOSApp Upgrade- firmware: SD-card WEB Package Type: MKS Robin-WIFI Module / LCD Screen Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC MKS Robin-WIFI Module/ LCD Screen (Optional)