Optimum panels in stainless steel version with 24 V DC voltage and color touch screen. 3.5 inches to 12.1 inches. Optimized touch panel, stainless steel. Data entry touch screen, display type 320x240 pixels QVGA- 5.7- TFT, Ethernet_RJ45 1, interfaces 2 USB, memory 96 MB, SD slot yes. Terminals are supplied with fixing kit (screw clamps), locking device for USB connector plug and instructions. The documentation for setting up the Magelis GTO terminals is included in an electronic format in the Vijeo Designer configuration software. Expansion of the storage space possible with 4 GB SD card HMI ZSD4G. The stainless steel version has a stainless steel frame on the front. Only this version offers protection class IP 66K.