The Special Version of Combo AV supergun with Pandora Box DX 5000 in 1 Just Arrived Today

Need to confirm these are compatible and safe to power on without a chamma to jamma adapter.

Also if I can get video out from the HDMI and/or VGA on the pandora box and not required to get the video out of the scart on the supergun? Still waiting for an OSSC to arrive so want to test via the HDMI today if I can.