A:AnswerYes it is compatible with your gopro and the recording time and quality will depend on what quality you choose to record in. weather you choose 1080p, 720p and so on. I would assume at least 3 hours worth, you will probably have more memory with this than your battery will last
A:AnswerYes made in China. No problem with it. You are looking for counterfeits that Best Buy would likely not have.
Check online how to spot a counterfeit and return it to Best Buy if it does not pass.
A:AnswerSure, it will work with any camera, right up to 4K. If your dash cam is 1080 or less you can get along just fine with a slower card, but unless it saves you a lot of money why worry?
A:AnswerAs long as your device supports expandable memory of up to or more than 64 GBs, then yes. Some devices that support expandable memory do not allow cards in excess of 32 GB, but I find that is mostly an issue with cameras like off brand go pro.
A:AnswerIt lasts around 2 hours, it depends on what you are using it for though. I did a timelapse of the sunset for around 2 hours and still had some juice