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PostPosted: Tue Sep 02, 2014 11:22 pm 

Joined: Tue Sep 02, 2014 11:15 pm
Posts: 6
Hello

I want to connect more than 4 cameras to one computer, but I have only 2 PCI Express slots. Can somebody try to use:

http://www.amazon.com/gp/product/B00DYO ... UTF8&psc=1

With 5 or more external USB ports?

Thank You


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PostPosted: Wed Sep 03, 2014 12:17 am 
iPi Soft

Joined: Wed Jan 11, 2012 6:12 am
Posts: 1896
Location: Moscow, Russia
Hi

Are you going to connect all the cameras to PCIe cards? You can use built-in USB ports as well.
Besides, having PCIe cards with more than 2 ports won't help you, because a single USB controller card can only handle 2 cameras at 60 fps.


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PostPosted: Wed Sep 03, 2014 1:32 am 

Joined: Tue Sep 02, 2014 11:15 pm
Posts: 6
Hello

So if I have only 2 PCI-E ports in my computer I can not connect more than 6 cameras?


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PostPosted: Wed Sep 03, 2014 1:51 am 
iPi Soft

Joined: Wed Jan 11, 2012 6:12 am
Posts: 1896
Location: Moscow, Russia
First, you should determine how many cameras you can connect using built-in (motherboard's) USB ports. If there are only USB 2.0 ports, then you probably have 2 USB 2.0 controllers - that's 4 cameras. If you also have USB 3.0 ports - that's additional 2 cameras (on USB 3.0 controller).
Next, in each of PCIe slots, you can install an USB controller card with 2 (or more) USB ports. That is another 2 cameras per PCIe slot, 4 in total.
Thus, in the best situation you can connect up to 10 cameras to your PC. However, the effective number can be limited by compatibility issues between cameras and USB controllers and overall performance of the system.


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