The Roku Ultra 4K UHD Streaming Media Player – 4640R is a high-quality media player that supports various audio and video formats, including Dolby Digital Plus, Dolby TrueHD, DTS:X, and Dolby Digital 2.0 Stereo. With its Quad Core processor and Roku OS operating system, it offers seamless connectivity via Wi-Fi and HDMI outputs. The sleek black design and 512 MB storage capacity make it a great addition for enjoying your favorite content in stunning 4K resolution. This 5th generation Roku Ultra model is perfect for media streaming and delivering an immersive viewing experience.