The Lexar Professional 1000x microSDHC/microSDXC UHS-II cards let you quickly capture, play back, and transfer multimedia files, including 1080p full-HD, 3D, and 4K video, with a read transfer speed up to 1000x (150MB/s). The cards leverage UHS-II technology (UHS Speed Class 3 (U3)) for high-speed performance, and include a USB 3.0 reader for high-speed file transfer.Quickly transfer files with included USB 3.0 Reader, dramatically accelerating workflow. Using the reader that comes with the Lexar Professional 1000x microSDHC/microSDXC UHS-II cards, you will experience high-speed file transfer at UHS-II speeds, right out of the box. This dramatically accelerates workflow from start to finish, getting you back to capturing the action faster.Whether you are shooting the action with your sports camcorder or an aerial camera, you can quickly capture, play back, and transfer extended lengths of the highest quality 1080p full-HD, 3D, and 4K video, making it easy to preserve more than 15 hours of your greatest moments and then relive the action.SpecificationsCapacity: 256GBSpeed Class: U3 / Class 10 / UHS-IIMax. Read Speed: 150 MB/sIncluded: USB 3.0 ReaderOperating Temperature: 0