SanDisk Extreme Pro SDXC U3 V30 170MB/s 256GB is a great storage accessory built for professionals. Compatible for use with DSLR cameras and hi-res camcorders, it can record 4K Ultra HD and Full HD videos along with offering tremendous read speeds of up to 170MB/s. Such great features help you shoot like a professional and get top-class responsiveness from your compatible device. UHS Speed Class 3 (U3) and Video Speed V30 ratings ensure that you can watch high resolution videos on the go. This practically enables super fast transfer speeds. The accessory is also shockproof, waterproof, temperature proof and X-ray proof to protect all your memories and recorded work from any potential harm. It also features RescuePRO Deluxe software for data recovery.