Supercharge your USB-C laptop by adding an USB 3.1 multi-slot card reader and writer and gain simultaneous access to all 3 memory cards. The IOGEAR's 3 in 1 USB-C Quantum Card Reader/Writer 3-Slot Card plugs directly into your laptop's USB-C port whether you have a 12 inch MacBook, the latest Thunderbolt 3 MacBook Pro or any Windows laptops equipped with USB-C port. This USB 3.1 technology allows you to transfer high-resolution images, video and data at the SuperSpeed rate of 5Gbps. The Quantum Card Reader is also backwards compatible with USB 2.0 for full compatibility with legacy systems.