Aiwa AW505U Instruction Manual page 10

Plug in your USB memory device (eg. USB stick) to play compatible files that are stored
on it or for PVR recording. These ports can play 4K UHD content @30fps
Connect to the component (YPbPr) output on your external video source device (used in
HDTV source).
support 4Kx2K@60Hz
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