JA,
I've achieved up to 400 fps (
) with reduced ROI - 3000 x 100 pixel.
The fps are heavily influenced by the choice of vertical pixels in the ROI. The lower the vertical pixel count the faster the fps. Depending on the quality of the spectrum I'm using, the ROI can vary from 3000 wide with 100 to 200 pixel vertically.
The cables as supplied by ZWO (I've got the ASI 1600, ASI 174 and ASI 178 cables) can work OVER THEIR SHORT lengths, 1.8 mtr.
The active CableCreation 5mtr USB3 I used was very good. Unfortunately after almost 12 months it failed.
I need at least a 4.5 mtr connection length. Even a eBay 3 mtr USB3 cable seems to work! but it seems very difficult to find a usable 5 mtr solution.
I need a 5 mtr repeater USB3 cable which can handle at least 200
fps, each frame 1.4 MB, so running at >274 MB/s.
(Someone has mentioned bidirectional issues???? Don't honestly know what's involved.)
FireCapture is my preferred software, it gives me control over the variables involved.
"When the cable is good, it's very very good, when it's bad it's a disaster!"
There must be other solar imagers around the world with similar issues....but I don't get any feedback.