21.5” Open Frame Tablet Open Frame Tablet 21 inch Open Frame Tablet Intel Atom Z3735F Quad Core 1.33 GHz Processor 2GB DDR3L RAM 8GB or 32GB eMMC PCAP Touch 10/100 Ethernet (PXE Boot) Touch board interface (Power/ Brightness/ Volume/ LED) 16Bit programmable GPIO RS232(TX/RX) or RS485 DC 19V Input Specifications System Mechanical & Environment Intel Atom Z3735F 1.33GHz Quad Core Processor Power Requirement System Chipset Operating Temp. System Memory Storage Temp. Operating Humidity 0%~90% Relative Humidity, Non-condensing Form Factor Open Frame Tablet Multiple Display Windows/ Linux support extended mode Android support clone mode only Product Dimension Packaging Dimension Packaging Weight Windows 8.1/ Windows 10, Android 4.4/ Ubuntu 14.04 Panel Display LCD Size Viewing Angle Touch Type 1 x Head Phone Jack Display Interface 2 x USB 2.0 1 x micro-USB Client (Android only) Power Input Rear mounting with integrated bracket designed for easy installation with screws. * All product specifications and images are