Specifications: TF card slot: Support up to 2T tf memory card. USB port:just put into any USB port with power, it can work. LED: Show the working state. Who means Apple can't expand memory? Breaking the Apple file management limited, expanding the Apply memory unlimited! Open the Card Reader, mobile phone immediately to/pad a new drive letter. You never need to worried the device is out of memory. Compatibility With: The Wireless Flash Drive Work with Almost All Phones, Tablets And Add Great Storage Capacity To Your device. Such As: Phones: IPHONE Samsung Galaxy S5 Cubot C9+, Cubot P9, Cubot P6, Cubot X6, Doogee DG300 Samsung HTC ZTE Blackberry Huawei/Cubot Cell Phones;Tablets: iPad, iPod touch, Kindle Fire, Samsung, Excelvan, Zenithink, Samsung ASUS/ Allwinner and Android Tablet PC Kindly Note: If you're not sure whether your smart device fit it or not, Please feel free to contact us. System Requirement: It can be used with PC or Mac computers running Windows 8, Windows 7, Windows Vista, Windows XP, or Mac OS 10.6 or higher. For mobile devices: iOS version 5.0 or higher or Android version 2.3 or higher is required. Kindly Note: A web browser is required for Wi-Fi enabled devices. Wireless Card Reader lets you store and access your music, videos, photos, and documents wirelessly on multiple devices. The Wireless Card Reader can connect to up to Eight devices simultaneously, so you can quickly move files between all your mobile devices or share with your friends. The portable drive requires no Internet connection, cables, or router, so it can travel with you anywhere.