Operating system: Android 4.4 KitKat and OS processor</br>Flash memory: 8 GB NAND flash?? SD expandable: Yes?? Wi-Fi: 802.11 B/G/N?? 2.4G/5.0G dual Wi-Fi</br>USB ports: 4 high speed USB 2.0?? support USB disk and USB HDD card reader: SD/SDHC/MMC cards</br>Support decoder format: HD M