Lots of threads here about how easy it is to add smaller amounts of storage but I need to move my still-expanding 160GB iTunes library off my 256GB MBA (late 2012). I'm fed up with carting around my LaCie 500GB rugged, but more practical options beyond 128GB are expensive! (For various reasons there are no cloud-based solutions that will be satisfactory for me - I need the original copy of my iTunes library with me at all times on and offline.) Clearly this Lexar 256GB MicroSD would be the ultimate solution, but at $800+ (in Europe) it's insanely expensive: http://www.amazon.co.uk/gp/product/B00AJS9DEM/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE So I'm looking at the cheaper ($300) Kingston USB option, specifically the Kingston Data Traveler Hyperx 256GB USB stick: http://www.kingston.com/en/usb/personal_business#dthx30 Reviews of the latter say it is 'chunky' - my worry is whether it will even sit flat on a tabletop Air, let alone block up other ports likely to be in use all the time too (power on left, thunderbolt on right). Anyone?