HI, I've some iussue; my standard configuration is: NEQ6 with EQMOD, PAD for EQMOD, 2 electric focuser connect to USB2 port of my PC; ASI1600MM-C connect to USB3 port of my PC and ASI1600 HUB to connect EFW and ASI120MM-S. My software to acquire frames is MaximDL and to software to guide PHD2. Often I cannot to download the frame with crashing of Maxim (I probe also with Nebulosity with the some result). The problem is to set USB traffic in usb2 and usb3? Or Other that I don't know? Thank You