{"action":"created","issue":{"url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/320","labels_url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/320/labels{/name}","comments_url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/320/comments","events_url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/320/events","html_url":"https://github.com/OpenKinect/libfreenect2/issues/320","id":94901597,"number":320,"title":"How many Kinect V2 a USB 3.0 controler support?","user":{"login":"yuanmingze","id":12066192,"avatar_url":"https://avatars.githubusercontent.com/u/12066192?v=3","gravatar_id":"","url":"https://api.github.com/users/yuanmingze","html_url":"https://github.com/yuanmingze","followers_url":"https://api.github.com/users/yuanmingze/followers","following_url":"https://api.github.com/users/yuanmingze/following{/other_user}","gists_url":"https://api.github.com/users/yuanmingze/gists{/gist_id}","starred_url":"https://api.github.com/users/yuanmingze/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yuanmingze/subscriptions","organizations_url":"https://api.github.com/users/yuanmingze/orgs","repos_url":"https://api.github.com/users/yuanmingze/repos","events_url":"https://api.github.com/users/yuanmingze/events{/privacy}","received_events_url":"https://api.github.com/users/yuanmingze/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/OpenKinect/libfreenect2/labels/question","name":"question","color":"cc317c"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":12,"created_at":"2015-07-14T09:14:04Z","updated_at":"2015-10-24T05:09:36Z","closed_at":"2015-07-15T03:52:56Z","body":"My PC's chipset is Intel® Z97 Chipset.There are one USB 3.0 control.OS is Windows 8.1 amd64.\r\n1.When connecting 2 Kinect V2s to pc it works well. But when connecting the 3th Kinect it doesn't work. Can I add a PCI-E USB 3.0 controler to fix it ?\r\n2.Readme say “libfreenect2 work for up to 5 devices”,how to connect 5 Kinect V2s with PC ?"},"comment":{"url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/comments/150756072","html_url":"https://github.com/OpenKinect/libfreenect2/issues/320#issuecomment-150756072","issue_url":"https://api.github.com/repos/OpenKinect/libfreenect2/issues/320","id":150756072,"user":{"login":"xlz","id":1385542,"avatar_url":"https://avatars.githubusercontent.com/u/1385542?v=3","gravatar_id":"","url":"https://api.github.com/users/xlz","html_url":"https://github.com/xlz","followers_url":"https://api.github.com/users/xlz/followers","following_url":"https://api.github.com/users/xlz/following{/other_user}","gists_url":"https://api.github.com/users/xlz/gists{/gist_id}","starred_url":"https://api.github.com/users/xlz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xlz/subscriptions","organizations_url":"https://api.github.com/users/xlz/orgs","repos_url":"https://api.github.com/users/xlz/repos","events_url":"https://api.github.com/users/xlz/events{/privacy}","received_events_url":"https://api.github.com/users/xlz/received_events","type":"User","site_admin":false},"created_at":"2015-10-24T05:09:36Z","updated_at":"2015-10-24T05:09:36Z","body":"4xPCIe 2.0 is 16Gbps. Each Kinect requires about 3Gbps bandwidth reservation. So 5 kinects would leave very little bandwidth left on your PCIe bus.\r\n\r\nKinect 2's data rate is smaller than its bandwidth reservation, about 1 Gbps (120MB/s). There would be PCIe round trips to the GPU too... Processing 5*120MB/s along seems doable."}}