High-Speed: BENFEI SD/TF 4.0 Card reader adopt the latest UHS-II SD card slot to support transfer speeds of up to 312 MB/s, triple speed than ST/TF 3.0 slot.(NOTE: The final data speed depends on the card and USB slot Type ). Type-C/Type-A 2in1 Design - The 2in1 USB-C/USB 3.0 cord design, BENFEI SD/TF 4.0 card reader could works with computer or laptop by USB 3.0/2.0 slot or the latest USB Type-C(Thunderbolt 3/4 Compatible) slot. Dual Card Slots: Includes both an SD and a microSD card slot, making it easy to transfer, copy, or save your files. Please note: When taking out the SD/Micro SD card, please press it first, and the card will pop up automatically. Please don’t pull it out directly. Stability - Braided nylon cable for extra durability with a tested 10000+ bend lifespan. Premium aluminium alloy casing, sturdy exterior and heat-resistant connectors give this reder incredible durability. This reader is far more dependable than others in its price range. 18 MONTH WARRANTY - Exclusive BENFEI Unconditional 18-month Warranty ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely BENFEI SD 4.0 Card Reader, USB-C/USB-A 2-in-1 Memory Card Reader, for SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD, Micro SDHC Card, UHS-II, and UHS-I Cards