<< Western Digital WDH1U6400 My Book Essential 640GB External Hard Drive Western Digital WDH1U6400 My Book Essential 640GB External Hard Drive >>>VIEW MORE IMAGES<<< About Western Digital WDH1U6400 My Book Essential 640GB External Hard Drive: 640GB – 7200rpm – USB 2.0 – USB – External – Black Features Western Digital WDH1U6400 My Book Essential 640GB External Hard Drive: Check Current Price Share this:TwitterFacebookLike Loading...