USB 3.0 is poised to become mainstream. The PCIe to 3.5" USB 3.0 Front Panel 4-Port Hub + Card Reader Comb is offering 4 extension ports for USB 3.0. The flexible design lets you can be mounted it on 3.5" front panel. Built-in PCIe adapter allows you to quickly add a 4-port USB 3.0 hub to your computer, without buying an extra USB 3.0 PCIe card to upgrade your computer from USB 2.0 to USB 3.0. It also integrated with 4-slot card reader and eSATA port as device. This device is also backwards compatible with both USB 1.1 and USB 2.0 specifications. Once an USB 3.0 device is attached to PC via this hub, user will be enjoying up to 5Gbps of transfer speed.