If your tablet is not rootée, the Nexus Media Importer paid application available on the official Google store is almost vital and helps you play pictures, videos, music, documents and other file types. To you the several GB of HD movies stored on your large external hard drive.
With Android 4.3 bug obliged to set the language of the tablet in "English" and restart to run this application. With Android 4.4 Kit-Kat is no longer necessary: all USB devices I tested worked with this cable OTG ... I even logged a PS3 Dual Shock 3 controller to play some old games on my Nexus . No need to buy a portable console like 3DS or PS Vita to play occasionally.
I recommend this USG angled OTG cable which remains a worthwhile purchase if you want to enjoy your USB devices to your tablet or phone.