Man, I thought I was able to wow people with my 8GB card!!! Enter the 12GB MicroSD... sweet! 12-Gigabyte microSDHC Card - the World’s Largest Capacity Card for Mobile Phones. A 12GB microSDHC is ideal for storing large quantities of music, photos and video. For example, it will be able to store a combination of 1,500 songs2, 3,600 photos3 and 24.5 hours of video4.