http://www.tweaktown.com/news/43904...-4k-capable-android-powered-box-tv/index.htmlThe new NVIDIA Shield is the world's first 4K-capable Android TV, with 4K decoding and H.265 and 10-bit video processing. The video on the NVIDIA Shield is "absolutely gorgeous" according to CEO Jen-Hsun Huang. The new NVIDIA Shield is capable of 4K at 60FPS, not 4K at 30Hz on most other devices. This is thanks to the incredible Tegra X1 processor inside of the Shield, something NVIDIA unveiled at CES earlier this year. We have 256 GPU cores, 3GB of RAM, and more. That's twice the power of the Xbox 360, with 1/5 the amount of power required.
https://plus.google.com/+DerekRoss/posts/eTpReanBggvHere's the worlds first 4K Android TV and it comes packed with a Tegra X1 chip, a gigabit NIC, two USB 3.0 ports for an external HDD and a microSD expansion slot.
This looks like it should be able to play 4K videos on an ext HDD connected to the USB 3.0 port.