Amazon.com has PNY U3 MicroSDXC Class 10 Memory Card on sale. Shipping is free with Prime or if you spend $35 or more.

• PNY U3 MicroSDXC Class 10 Memory Card
  • 64GB $19.99
  • In stock on January 25
• 32GB $10.99
• 16GB $6.99
• In stock on January 25