Capture more fast action and record more with the SanDisk Extreme microSDHC UHS-I/U3 Memory Card. UHS Speed Class 3 (U3) and Class 10 to record 4K video, Full HD video (1080p) and other various video modes supported by GoPro cameras. You'll be able to move your data fast with transfer speeds of up to 45 megabytes per second. It's designed to withstand water, temperature, shock, and X-rays. This SanDisk Extreme® memory card can function in nearly any climate thanks to its operational temperature range of negative 13 to 185 degrees Fahrenheit.