Enjoy high-definition streaming with the Roku Ultra 4660R. Released in 2017, this version of the Roku Ultra streaming box provides access to a suite of popular streaming services in full 4K HDR. Dual-band 802.11ac wireless connectivity, a HDMI 2.0a port, and 10/100 Base-T Ethernet make it easy to network the Roku Ultra with your other devices. It also has a USB port for local connections and a microSD card slot for unlocking new channels.