Articles on PS4/Xbox One:
http://www.spawnfirst.com/news/xbox-one-and-external-drives-not-happening/
http://www.theverge.com/2013/9/3/4689938/the-xbox-one-wont-support-external-hard-drives-at-launch
http://www.extremetech.com/gaming/165586-ps4-and-xbox-one-wont-support-external-hard-drives-for-now