go pro back bone

I agree with you as the cards don't cost that much.

You want a good name brand from a store you can trust as there are many forgeries around. The Lexar 667x is inexpensive and still a great performing card.

https://www.amazon.com/Lexar-Professional-128GB-UHS-I-LSD128BNA667/dp/B07NHFQ88K/ref=as_li_ss_tl?keywords=lexar+128gb&qid=1560384713&s=gateway&sr=8-7&linkCode=sl1&tag=doubledeej-20&linkId=c50698f34c182c3e7bcd4f6c3394cfde&language=en_US



You can find many more here rated for best performance per dollar.

https://djprod.biz/diskperformance.php?type=SD+Card&capacity=128&sort=valueperf&submitbtn=View