I have a "collection" of cameras and other gear connected to my NEQ6pro mount and C9.25 scope. CdC and PHD + Al's reticle.
Atik16ic, MX916, DSI II, focuser etc as well as guide cameras QHY5 or a DMK...I use a couple of Lindy powered USB cables into a powered 7 port USB hub (powered from a 12V gell cell battery -12V to 6V t/x) everything then gets loaded into the hub - USING THE SAME PORT every time.
The DMK is firewire...I started with the small 4 pin connector (Acer laptop) with an additional 12V power connector ( The IS cameras won't work on just the USB voltage of 5.5V) eventually the socket on the laptop broke under the constant use... I then when to a powered PCMCIA firewire card this has a socket for 12V and the larger 6pin cable.
I've now added a similar card (Express type) to the "back up" Dell laptop.
This set up works 110% for me with the spectroscope.
HTH
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