Technical Specifications
| Screen | 21.5 in (546.1 mm) TFT LCD |
| Resolution | 1920 x 1080 PPI |
| Brightness | 250 cd/m2 |
| Hipset | Celeron J1900 or 3855U or 3865U or i3 or i5 or i7optional |
| RAM | Standard 4 GB DDR4, up to 16 GB |
| Watch dog Timer | 0 to 255 sec by software |
| Storage | SSD 64 GB, up to 512 GB |
| USB | 4 x USB 3.0 |
| COM | 6 x RS232 (1 to 2 x RS 485 or RS 422 optional) |
| Audio | 1 x Line-out +1 x Mic-in |
| Display | 1 x VGA，1 x HDMI |
| Mini PCIe | 1 x Mini PCIE (WIFI or BT or 3 G or 4 G optional) |
| GPIO | 1 x 4 in or 4 out |
| Anti-shock | 0.022 lb (10g) acceleration, 11ms duration |
| Reliability | 0.5 hrs |
| Operating Temp | 32 °F to 122 °F (0 °C to 50 °C) with air flow |
| Storage Temp | -22 °F to -94 °F (-30°C to -70°C) |
| Operating Humidity | 95% RH at 104 °F (40°C), non-condensing |
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