Great for an RPi, handy charger too,
Verified Purchase(What is this?)
This review is from: Plugable USB 2.0 4-Port High Speed Charging Hub with 12.5W Power Adapter (BC 1.1 Charging Support for for Android, Apple iOS, and Windows Mobile Devices) (Electronics)
Paid £20.95 in April 2013
Same as reviewer Rob: bought for an RPi model B, works perfectly to both power and extend USB ports.
Also it never really occurred to me but it came in handy at a recent large family meetup for everyone to plug in and charge their mobile phones from a limited number of sockets.