It’s all about sound. And noise. Well, to Sony it is, at least. In a bit of a head-scratcher, Sony is releasing a new microSD card, called the microSDXC. This 64GB card is labelled as being “for Premium Sound”, to which Sony hopes audiophiles everywhere will buy it. At $160, it’s a lot pricier than similarly specced microSD cards. That massive price boost (like five-times as much) is explained away, where Sony explains it has “less electrical noise when reading data”.