March 27, 2022 at 5:36 PM. Hero 9 black mtp connection very slow. Hi, i have a gopro 9 hero black with latest software, is it normal that the MTP usb connection is so horrible slow compared to network and sd card directly? see files attached for comparison. Translate with Google. And finally, for the GoPro camera, we used the GoPro Hero 9 Black, but set on 12MP, which is the most commonly used resolution. Note that these results apply to all types of memory cards, be it SD, Micro SD, CompactFlash etc. How many photos can a 16GB SD card hold? Formatting GoPro SD Card on Mac. Step 1: Insert your SD card into your computer using a microSD adapter. Step 2: Open Disk Utility on your Mac. Step 3: Locate the SD card and select it. Then, click the Erase tab in the middle of the window. Step 4: Next, click on the Format dropdown menu. The GoPro Hero 9 Black is the most powerful and versatile action camera you can buy, but for most people its predecessor offers better value. microSD card and the camera itself, all of which This is a common re-occuring problem with the GoPro Hero 9 and there are hundreds of complaints about it by now. However there is a work around. Here's some pointers: You can use either a 128GB or 256GB SD card, both card sizes are fine to use in the GoPro Hero 9. The problem has mainly been reported with Sandisk cards. SuZwAg.