Features: 1.Equipped with USB 3.0 Type A and Type C plugs, the card reader can be used for free data exchange between memory cards and PCs, laptops, mobile phones and tablets with OTG Type ?A/ Type ?C/Thunderbolt 3 functions. 2.Power is supplied via USB plug, so no additional power supply is required. 3.The USB card reader has over?current, over?voltage and short?circuit protection functions to give a high degree of safety for all connected devices and memory cards. 4.The card reader adopts aluminum shell designing, which can dissipate heat well. 5.Included protective cover protects the two connectors from unnecessary pollution and dust. Friendly keychain cable on the card reader ensures loss prevention specification:Item Type: Memory card reader Interface 1: Type-C Interface 2: usb3.0 Support memory card: Memory card, secure digital high capacity, small memory card(not included) Installation Method: External Operating System: For Windows/ OS X/Linux, etc. Type: Memory card / small memory card(not included) Applicable to memory card, secure digital high capacity, secure digital extended capacity, RS-multimedia card, multimedia card, small memory card, Micro secure digital high capacity, Micro secure digital extended capacity, and UHS-I cards(not included), the maximum capacity can reach 512G. PackageList:1 x MemoryCardReader