▪ Check to see if there is a firmware update available for your device from the manufacturer. ▪ Try plugging the device into another USB port on the computer. ▪ Sometimes unplugging and plugging the device back in can resolve the issue. To check, choose Software Update from the Apple () menu and see if any updates are available. ▪ Be sure you've installed the latest software updates available for your computer. USB 3 devices are not activating or not appearing on the USB 3 bus. In some cases, using another USB port on the Mac, or via a connected peripheral like a display, will result in a proper connection.Īpple offers an "Using USB 3 devices on Mac computers FAQ" that mentions various troubleshooting steps, including using a powered USB hub. This sort of problem can also happen with other USB devices from various manufacturers, using USB 3.0 ports under OS X. A proper Elgato Game Capture HD connection would show up under "USB High-Speed Bus", with a speed of "Up to 480 Mb/sec".
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