Cheapest price I've seen for a PowerCube. Previous cheapest price was $10 back during the DSE days.
It's a compact version of a power board. Great for travelling too, and you can plug 5 adaptors in without blocking any sockets.
It doesn't look like the version with the built-in USB charger. The charging circuitry in that version is very basic anyway, it only identifies itself as an Apple charger and only provides 2.1A across the two ports. Plugging in a smart QC multi-port charger like this 5-port one would be a better use of the socket it takes up. You can add a duck head adaptor to make it neat.
Available from this Saturday the 25th of March.