A SanDisk SD, SDHC, an SDXC card adds extra memory to any device with SDHC or SDXC card slots. Use one to store more movies and TV shows on your SDHC- or SDHX-enabled laptop or tablet. Designed to withstand the toughest conditions, SanDisk SDHC memory card are waterproof**, shockproof** , and X-ray proof** . They can operate in temperatures ranging from -13 to 185 degrees Fahrenheit, so you can capture memories in almost any climate. SanDisk memory cards feature a blank, writeable white space on the front, making it easy to organize, sort and store.