Cafago offers this Smart Android 8GB 4K UHD TV Box for $39.97. Coupon code "V1880USMGC" cuts that to $31.49. With free shipping, that's $16 off and the best price we could find. Features include an Amlogic S905X 2GHz quad-core CPU, 1GB RAM, 8GB flash storage, 4K support, WiFi, Ethernet, Android 6.0, two HDMI inputs, and four USB ports.