echnical Specifications CPU: Rockchip RK3568, up to 2.0 GHz GPU: ARM G52 2EE NPU: 1 TOPS Memory: 2GB DDR4 (Opt. 4GB / 8GB) Storage: 16GB eMMC (Opt. 32GB / 64GB / 128GB / 256GB / 512GB) LAN: 2 × Ethernet (10/100 Mbps, RTL8201F) I/O Interfaces: Power Button (Always ON) DC IN 12V (Opt. 9–36V) HDMI ×1 Audio Combo (Mic / Line) USB: 2 × USB 3.0 (Host ×1, OTG ×1) COM: 4 (2 × RS232, 2 × RS232/RS485) GPIO ×4 SIM Slot ×1 Upgrade Button ×1 Expansion & Functions: Mini-PCIe ×1 (4G / 5G, Optional) Software Watchdog OS Support: Android 11 | Ubuntu 20.04 | Debian 11 Display: 15" Industrial LCD (LED) 1024 × 768, 450 nits View Angle: 89°/89°/89°/89° Contrast: 1000:1 Backlight Life: ≥30,000 hrs Touch: Projected Capacitive, 10-Point USB Interface, ≥80% Transmission Environment: Operating: -10°C ~ +60°C Storage: -20°C ~ +70°C Humidity: 5%–95% RH (Non-condensing)