The Roku Express 3960X HD Media Streamer in black is a unit with a single core processor and Dolby Digital surround sound format. It features HDMI audio/video output and connects via Wi-Fi. With a maximum resolution of 1080p (FHD), it operates on Roku OS and has a storage capacity of 32 MB. This model from Roku offers a reliable and user-friendly streaming experience for enjoying high-definition content on your TV.