The Sandisk Connect is proof that necessity is the mother of invention. Phones don't have microSD slots anymore, and no matter how much internal space you have, a 300MB file of "Shine On You Crazy Diamond" is overkill. I came up with a playlist that I wanted to keep on my phone for when I'm flying, and it was 20GB just to start, so I was going to burn up 1/3 of my phone's storage. I wanted to just use a lightning flash drive, but my headphones (Audeze EL-8 Titanium) use the lightning port. That's when I found the Connect. It is the same size and shape as any other flash drive, but noticeably heavier. That's because it has it's own wi-fi network and battery. You plug it into your computer, load up all your music, and you're good to go... almost. I downloaded 20GB of FLAC files onto it, downloaded the Sandisk Connect app on my phone, and went to go play the files just to find out that FLAC wasn't a supported format. One trip to Google later, and I had to spend 10 bucks on an app called "It's Playing". It is one of 3 apps that I am aware of that can see a Sandisk Connect as a network drive, as the device is normally only accessible via Sandisk's app. I bought the app, and I was good to go. It has handled every file I have thrown at it. It tells you the format, the bit depth, sample rate, and bit rate of whatever file you're listening to. I didn't get this working until this morning, so I can't vouch for if the app messes with quality, but it doesn't appear to have any issues. You can adjust the cache so it can buffer a whole song as well. The Connect is supposed to have a 4.5 hour battery life; I'll find out tonight. I'm really excited about this thing; it makes it so much more convenient. When plugged into a computer, it will not put out a wi-fi signal, but when plugged into a USB charger, it will. It's USB2.0, so transferring 20GB of music took longer than I wanted it to, but it's not like I'm going to keep doing that constantly. Either way, it's a genius little device that fills what I consider to be a growing demand.
Seagate makes a hard drive that is 500GB and more called the Seagate Wireless and Seagate Wireless Plus that works the same way, but I have had an unacceptable amount of bad experiences with Seagate storage, so my 64GB Sandisk will be just fine.