Plugable USB 2.0 4 Port Hub and Accelerated Charger for Kindle Fire HD, Kindle Fire, and other Kindle models Fast Charging only with BC 1.1 compatible devices like Kindle Fire, Kindle Fire HD and other Kindle models, also devices like the Google Nexus 7 Full compatibility with all USB 2.0/1.1 devices at highest native speeds (480/12/1.5 Mbps) No driver required on any platform: Works with all USB hosts and standard USB 2.0 hub Standard USB 2.0 4 Port Hub with 2.5A Power Adapter and support for new BC 1.1 charging standard Because only some devices support BC 1.1, check compatibility list below before purchase