The Superman Symbol 4 GB USB Drive is a fun way to store your data and show the Man of Steel some love. This Superman symbol shaped keychain separates in the middle to reveal it contains a flash drive. So no more of those cumbersome, fragile (-looking) crystals for you at the Fortress of Solitude. Time to step into the 21st century. And of course you'll keep all your highlight reels from your home-world on Superman symbol keychains. That way you'll know they don't just contain pictures and music and whatnot. Unless they do, because that's a perfectly acceptable use for these USB drives, which are both PC (Windows 98/SE/ME/2000/XP as stated on the back, but we tried out on a Windows 7 and it worked fine!) and Mac (OS 9.x or above) compatible!