Test setup: After the micro-USB thread where I showed that USB cable and charger matters, it’s time to speak about SD-Cards. For this I buyed a cheap SD-Card from aliexpress claimed to be a 8GB class 10 SDHC. Since I have no other 8GB cards I’ll compare this card with a Samsung EVO+ 32GB card which I usually use with my SBCs. After arrival, I did (as recommended by the armbian getting started guide) a first H2testw to check if the card is in a good shape (test results in german).