Another issue I had with GHY294M was with USB. The QHY camera seems to need more power via USB3 than the equivalent ZWO, so when I simply swapped my ASI294MC pro for QHY294M it didn't work at all, so I am now running all my USB stuff through a good (12V,3A powered) USB hub (Anker 10 Port 60W Data Hub with 7 USB 3.0 Ports and 3 PowerIQ). Cheap hubs "powered" by usb power may not work. This arrangement works 100%. Hope that helps.

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