What are the other 3 ports beside the HDMI port for?

Buy HDMI Cables Online at the Best Price in India hdmi slot Hdmi port Stock Photos and Images RF D1G36E–Photographic equipment - Sony Alpha 99 professional DSLR-style full frame digital camera USB, HDMI, mic and hdmi slot There is no video when using HDMI port · Confirm the HDMI input is selected · Plug in the projector first, and then turn on the PC · Replace the HDMI cable,

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