The Lexar USB3.0 Workflow Hub HR-1 allows up to four card readers to be used simultaneously to transfer files to a PC or Mac, greatly speeding up workflow. Transfer RAW images, high-res photos, and HD, 3D, and 4K video files at USB 3.0 speeds when using a USB 3.0 port. Just plug it in to get going: whether it's four readers of the same type, or different formats (CF, SD and XQD), the Hub allows the photographer complete flexibility of choice. Note that readers must be purchased separately and are not included with the Hub. The Hub is future-proof too. As Lexar introduces new card formats for this system, you’ll be able to swap in new readers to meet your changing needs.