Samsung UN40KU7000F - 2-4-7. Supported Resolutions for UHD Input Signals

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2. Product specications
2-4-7. Supported Resolutions for UHD Input Signals
Check the supported resolution for UHD input signals.
Resolution: 3840 x 2160p, 4096 x 2160p•
NOTE
An HDMI connection with HDMI UHD Color set to Off supports up to UHD 50P/60P 4:2:0 input signals, while an HDMI
connection with HDMI UHD Color set to On supports up to UHD 50P/60P 4:4:4 and 4:2:2 input signals.
If HDMI UHD Color is set to Off 
Frame rate (fps) Color Depth / Chroma Sampling RGB 4:4:4 YCbCr 4:4:4 YCbCr 4:2:2 YCbCr 4:2:0
50 / 60 8 bit - - - O
If HDMI UHD Color is set to On 
Frame rate (fps) Color Depth / Chroma Sampling RGB 4:4:4 YCbCr 4:4:4 YCbCr 4:2:2 YCbCr 4:2:0
50 / 60
8 bit O O O O
10 bit - - O O
12 bit - - O O
NOTE
For the SUHD models, each HDMI connection can be individually optimized for HDMI UHD Color.
For the UHD models, make sure to connect to the HDMI IN 1 port of the TV.