It's this model:
http://www.aliexpress.com/item/4-Port-2A-USB-Fast-Charger-Mo...
The price on Aliexpress is stunningly high though; I bought it for something like $2-$3 in person. I guess this is one of those cases (I've noticed a few), where Chinese just leave the same price numeric value but change the unit from CNY to USD.