Atomos Shogun Inferno
This is a fantastic 4k recorder from Atomos and is also a great lightweight battery monitor for use on set and out in the field.
Video from any camera or digital video source can be captured via SDI or HDMI. Record up to 10-bit 4:2:2 in ProRes or DNxHR codecs at 4Kp60 or 2Kp240, depending on your camera.
The depth and quality of the image is preserved with data rates of up to 1.8Gbs, 220MB/s.