Not all SD cards are built the same, and it’s really common to have a ‘go-to’ brand when purchasing new cards. But how does your favorite SD card manufacturer perform when put under stress? After all, there are times when speed isn’t the best quality, such as when you’re using one with a Raspberry Pi. One Redditor has tested just under 300 SD cards to find out, and as it turns out, they listed one of my preferred makes of SD cards as not very reliable.