Lexar pro hr2 workflow hub with usb 30 and dual thunderbolt 20 ports is a two four bay reader and storage device that allows you to transfer and store data simultaneously at thunderbolt 20 or usb 30 speeds from multiple memory cards at once its innovative modular design lets you create a custom setup while its high speed performance lets you offload and back up your work faster so you can spend more time behind camera and less time sat in front of a computer this device is features ca