Question about the android micro SD card
What flash drive should I buy for my android so that I can use it to download music to the card from my PC? Please give a name or a link.
shareSanDisk invented flash media, and is currently a top brand for it. But more than the brand, you want to look for the data rate that your Android device supports, and buy flash media that meets or exceeds that spec.
Since the price difference is small, and SD cards can last years if cared for, I'd buy the "fastest" SDXC card available, currently UHS class 3. Here's a FAQ about SD card data rates, or "speed*":
https://www.sdcard.org/consumers/speed/
* Note that electrons move at the same speed regardless of data transfer rate, so confusing data rate with "speed" is confusing.