Specifications: Item Type: Card Reader Material: Aluminium Alloy Size: 23×16×10mm/0.91×0.63×0.39in (Approx.) Interface: USB 3.1 Type-C Card Compatibility: MICRO SD/SDXC/TF card (card is not included) Fit For: Macbook / Cell phone / Tablet with USB 3.1 Type-C port