A:AnswerAbsolutely. I own this camera and the combo works no problem. Kind of overkill though - you could get a 64Gb SanDisk card that’s not as “extreme” since the T5 shoots compressed 1080p (not 4K).
A:AnswerI don't claim to be an expert cause I'm absolutely not but I've shot plenty of 4k video with no issues. Currently 2 hours worth and I still have plenty of space. I haven't experienced any lag although I haven't tried continuous photo shooting.