Complaint
| System | CPU | RK3566 Quad core cortex A55 |
| RAM | 2GB | |
| Internal memory | 16GB | |
| Operation system | Android 11 | |
| Touch | 10-Point capacitive touch | |
| Display | Panel | 21.5"LCD |
| Resolution | 1920*1080 | |
| Viewing angle | 85/85/85/85(L/R/U/D) | |
| Display mode | Nomally black | |
| Contrast ratio | 800 | |
| Luminance | 250cdm2 | |
| Aspect Ratio | ,16:9 | |
| Network | WiFi | 802.11b/g/n |
| Ethernet | 100M/1000M ethernet | |
| Bluetooth | Bluetooth 4.2 | |
| Interface | Card slot | SD,support up to 32GB |
| Mini USB | USB OTG | |
| USB | USB Host 3.0 | |
| USB | USB host 2.0*2 | |
| Power Jack | DC power input | |
| RJ45 | Ethernet interface | |
| HDMI | HDMI output | |
| Earphone | 3.5mm earphone | |
| Media plays | Video format | MPEG-1,MPEG-2,MPEG-4,H.265,H.264,VC-1,VP8,VP9, etc.,support up to 4K |
| Audio format | MP3/WMA/AAC etc. | |
| Photo | jpeg | |
| Other | Speaker | 2*3W |
| VESA | 100x100mm | |
| Camera | 5.0MP front camera | |
| Microphone | yes | |
| Language | Multi-language | |
| Working temp | 0--40degree | |
| Certificates | ||
| Accessories | Adapter | Adapter,12V,3A |
| User manual | yes | |
| Stand | yes |
