We need to run Sandisk Extreme 32Gb MicroSD Benchmark to see how it performs and make conclusion if it is enough to handle UHD 4K 60fps recordings speeds.
This SD card came as part of the bundle with GoPro Hero 7 Balack from Costco. Here is video about it
Judging by the fact that it is part of the bundle and GoPro Hero 7 Black is capable of 4k60 I assumed that it should be capable of handling video stream. But better to check it now be sorry about crappy footage later.
I executed several standard performance test. Screenshots are attached. Official specs are really hard to find. Sandisk website is very convoluted and full of marketing wankery but not solid specs. Lets see what I was able to collect:
Sandisk Extreme 32 GB:
Form Factor: microSDXC
– UHS Speed Class 3 (U3)
– Class 10
– A1 ( What does it really means ? )
SD Adapter: Yes