Connecting Genie 4k mini to projector - DirecTV

I'm looking for suggestions to connect my Genie 4k Mini to an Epson Powerlite W7. I would like to use the HDMI output from the Genie to the projector, and the Optical Audio out from the Genie to my surround sound receiver. I'm curious which cable I need to buy to do this? I was told to get an HDMI to VGA cable to do it, but wanted to make sure I didn't need one with some kind of converter. Thanks!!

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