Size 3.5'', 4.3'', 5'', 5.6'', 5.7'', 7'', 8'', 10.1'', 10.4'', 12.1'', 15.1'' Hardware 1G Hz Cortex A8 CPU | 256 MB Flash ｜ Touch Screen Interface RS232 ｜RS422｜RS485｜TTL｜LAN｜WIFI | USB Resource files Vector Font ｜ Image ｜ Video ｜ Audio Characteristics TOT: -40°C to 85 °C ｜ Anti-Electromagnetic Interference https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=320129