PPC3-G-6.5 open-frame PC operates from -20 to +70 °C and includes a resistive touchscreen integrated into a 2 in. deep chassis. The 6.5 in. color TFT flat panel display with 640 x 480 pixel resolution has luminance of 500 nits, a wide viewing angle, and a contrast ratio of 600:1. A PC/104-Plus SBC is the computing and display engine and contains the flat panel video controller, Ethernet port, two USB 2.0 ports, 4 COM channels, LPT, AC97 audio, 48 lines of digital I/O, and CompactFlash connector.