Amazon has the Lexar High-Performance 633x microSDXC UHS-I Card – 512GB in $72.48 for Prime Members with free shipping.
- Ideal for sports camcorder, tablets, and smartphones.
- UHS-I technology for a transfer speeds up to 100MB/s.
- Includes Class 10 card and SD adapter.
- Limited Lifetime for the card and one-year limited for the adapter.