Features: [Android 7.1 Nougat OS] Z28 PRO runs on the latest Android 7.1 Nougat System which is perfect in productivity, stability and performance, along with various of features and optimizations, delivering an improved user experience. [RK3328 Quad-Core CPU] Powered by high-performance RK3328 Quad-Core CPU, Z28 PRO will be able to play 4K videos with H.265, H.264 and VP9 codecs. It also features HD 2.0a, USB3.0 and a Penta-Core Mali-450 GPU. [HEVC H.265 VP9 Decoding] H.265 decoding occupies less bandwidth (about 50%) than H.264; H.265 and VP9, powerful decoding capabilities, can decode most of the file formats at present. Enjoy 4K movie smoothly which is 4 times of full HD 1080P. [UHD 4K Resolution] Based on H.265 HD decoding, it offers 4K * 2K output which provides you high definition viewing and fluent video playing, making it as the highest resolution signal available for home movies. [Smooth Running Large Storage] 2GB RAM with 16GB ROM provides plentiful room to quickly start and operate the apps and games, also greatly improves the reliability of your TV box and prevents crashes due to lack of memory. Note 1: Please connect the TV BOX with your 4K TV first, and then 4K resolution option will show in resolution setting. Note 2: The remote controller of the product belongs to attached and functional accessory. If part of product functions can't be controlled by the controller, please purchase external mouse or air mouse to operate. You will have a better using experience. Highlights: OS: Android 7.1 CPU: Rockchip RK3328 Quad Core 64Bit ARM Cortex-A53, up to 1.5GHz GPU: Penta-Core Mali-450 up to 750Mhz+ SDRAM: 2GB; ROM: 16GB Expanded Storage: Supports TF Card (up to 64GB) WiFi: 2.4G WiFi Ethernet: 10/100M UHD Video Output: Support 4K * 2K Full HD1080P@60 fps video output Bullet Point: Protocol: Support WiFi Display, Support DRM requirement. Mouse / Keyboard: Support mouse and keyboard via USB; Support 2.4GHz wireless mouse and keyboard via 2.4GHz USB dongle. OSD type of languages: English, Chinese, etc. multilateral languages. Media Format Supported: Video Decoder: Full video format decoding support. Support H.265 hardware decoding. Support format MPEG-1, MPEG-2, MPEG-4, H.263, H.264, AVS, VC-1, RV, VP6/VP8/VP9, Sorenson Spark, MVC 3840*2160 60FPS. ( H.264 / H.265 Data Rate: Up to 60Mbps). Video Encoder: H.264, H.265, VP8, MVC (4K * 2K) Audio Formats: MP3 / WMA / APE / FLAC / AAC / OGG / AC3 / WAV. Photo Formats: Support JPG, JPEG, BMP, GIF, PNG, JFIF, etc. photo format. Maximum resolution up to 8192 * 8192.