I'm wondering if your cameras use a DB15 connector but connected to a converter card with DB15 ports rather than a port that was used for VGA.
I haven't had much experience with surveillance systems. Meh.. whatever the port is called, VGA or not, my concern was matched connectors won't guarantee it will work.
So they are called BNC cables. So what I have right now are 8x BNC to VGA. I have two of these types of cables connecting to two VGA ports on my old desktop. Can I maybe do a 8x BNC to USB cable and just buy two of those?
Thank you. That makes more sense to me. Your old desktop computer probably has a card like the one in this eBay listing. It's a video capture card. USB to VGA adapters for monitors don't support video capture. They're meant to work with video going out to a monitor. Maybe there are 8x BNC to USB capture boxes. I'm not sure. I haven't checked. I wonder how well the USB bus would work with 16 video inputs and if the software you have can work with video captured from a USB device. Do you not want use the capture card from your old computer in your new computer? Using the card seems like the least costly solution to consider first. However, the capture card in your old computer might be a PCI or PCIe card. Your new computer might not have a PCI slot for a PCI card. If your new computer has a newer operating system then there might not be drivers available for the card. The software that worked with the capture card might not be compatible with a newer operating system.
Edit: I did a little searching. This product at Amazon seems to be like what you have in mind. It supports only 4 channels. I'm not recommending that specific product. I just gave a link to it so you can see what I think you're thinking about. However, if the old capture card and software still work with the new computer I'd try using that first.
It is an all-in-one computer so it most likely won't let me mess with the motherboard or add anything to the PCI slots. As for the old desktop I will have to open it and check for the capture card. It does look like to me that the eBay listing you provided is similar to what is in my old desktop. Maybe there is an adapter I can buy which is like PCI to USB. So I can just plug in the USB end to my new desktop and have the PCI end connect to the capture card(the ebay listing).
EDIT: I looked at the amazon listing that you provided and that seems to be good but I will have to order 4 of them (since I don't need audio and there are only 4 video ports). It says I can view 4 cameras on one screen. What if I buy 4 of these devices(the amazon link you provided) and hooked them up to 4 USB ports on my All-in-one?
I shall be using the free open source software called iSpy that can detects USB connected cameras in my new all-in-one desktop PC. If I connect all 16 of my cameras using this method, will that surveillance software(iSpy) recognize them all as USB cameras? I will be happy to use any other software if recommended. The pictures of my existing cables and VGA plug that I had taken were too large in size to attach on this website so I have uploaded them to Mediafire so that you can download them from there and view them. Thanks. The link is below.
Please take a look at this link and advise. Thanks for spending so much time helping me. I appreciate that.
EDIT: I also noticed that the adapter(the amazon link) does not support Windows 8. Whereas my all-in-one desktop PC has Windows 8 operating system installed.
Edited by maxell505, 05 April 2014 - 05:25 PM.