Bestbuy offers SanDisk - Ultra PLUS 512GB microSDXC UHS-I Memory Card for $54.99 (orig. $60.99) with free shipping.

Product Description:
Save your photos and videos with this SanDisk SDSQUBL-512G-AN6IA Ultra PLUS microSDXC UHS-I memory card. A 512GB storage capacity provides ample space to hold plenty of large media files, while transfer speeds of up to 160MB/sec. offer swift app performance. This SanDisk Ultra PLUS microSDXC UHS-I memory card is resistant to water and shocks for durability.

• 512GB storage capacity
  Provides plenty of space for your photos, videos, documents and other data.
• Fast data transfer
  Up to 160MB/sec. read speed for quick access to your files.
• Rugged construction
  Resists damage from shock, water, X-rays and temperature.
• SanDisk Memory Zone app
  The SanDisk Memory Zone app lets you view, access and back up your phone's files in one location. It can also automatically move files from your device to your memory card to free up space. Plus, get a one-year offer for RescuePRO Deluxe file recovery software.*
• Includes microSDXC-to-SD adapter
  Allows you to use this card with SD adapter slots.
• Compatible with most devices that support microSDXC cards
  Ideal for Android cell phones and tablets.