SanDisk Extreme Pro microSDXC V30 U3 4K 170MB/s 512GB is a great storage accessory built for professionals. Compatible for use with DSLR cameras, smartphones and tablets, it can record 4K Ultra HD and Full HD videos along offering tremendous read speeds of up to 170MB/s and write speed up to 90MB/s. Such great features help you shoot like a professional and get top-class responsiveness from your compatible device. The card ensures that you can watch high resolution videos on the go. The accessory is also shockproof, waterproof, temperature proof and X-ray proof to protect all your memories and recorded work from any potential harm.