Features: [Android 8.1 OS] A5X Max runs on the latest Android 8.1 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, A5X Max will be able to play 4K videos with H.265, H.264 and VP9 codecs. It also features HDR 10, 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. [Storage WiFi LAN] 4GB DDR3, 16GB eMMC Flash and Max. 128GB SD card reader provide more space for richer using experience and enable to run files and games quickly. 2.4G WiFi, 10 / 100M LAN and Bluetooth 4.0 make home entertainment easier. 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 8.1 CPU: RK3328 Quad-Core Cortex-A53 GPU: Penta-Core Mali-450 up to 750Mhz+ SDRAM: 4GB DDR3; Flash: EMMC 16GB Expanded Storage: Supports SD Card up to 128GB WiFi: 2.4G WiFi, built-in Antenna Ethernet: 10/100M, standard RJ-45 High Definition Video Output: 4K (4096*2160pixel) HDR: HDR10 and HLG modes USB Host: 1 high speed USB3.0, 2 USB2.0 Bullet Point: DLNA: Push the video, audio, pictures from phone or network to TV. 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, French, German, Spanish, Italian, etc. multilateral languages. Media Format Supported: Decoder Format: 4K VP9 Video decoder, H.265/H.264 video decoder, 1080P other video decoders (VC-1, MPEG-1/2/4, VP6/8). Media Format: Avi, Ts, Vob, Mkv, Mov, ISO, wmv, asf, flv, dat, mpg, mpeg. Music Format: MP3, WMA, AAC, WAV, OGG, DDP, HD, FLAC, APE. Photo Format: HD JPEG, BMP, GIF, PNG, TIFF.