CableCreation 4-Port USB 3.0 Aluminum Data Hub with 4.8FT Durable Braided Extension Cable for Mac, PC, USB Flash Drives,Black and White USB Multi-Port Expansion: This hub allows you add 4 unpowered super speed USB 3.0 ports to your computer, convenient for attaching USB flash drive,keyboard,mouse, card reader and other USB peripheral. ** 1. This hub is not for charging; 2.Wireless devices not recommended due to possible USB 3.0 radio frequency interference impact; 3.When you attach an external hard drive to the hub,do not attach other device to it and plug the hub to a USB 3.0 port for sufficient power supply.** Super Speed Syncing: Data transfer speed up to 5Gbps , ten times faster than USB 2.0. Strong Compatibility with all Windows/Mac/Linux systems. Backward compatible with USB 2.0 / 1.1. Easy to set up, Plug-n-Play. No drivers required and connect all your devices at once without creating a mess. Extra Durability & Ultra Extension: SturdyAluminium alloyCase, two-toneblack&whitebraided jacket. 4.8ft extension cable reaches your rear or bottom USB port from your PC without leaning over your body. CableCreation Warranty: You will received 1 x CableCreation 4-Port usb hub, two years of equipment warranty and lifetime technical support.