Amazon.com: SanDisk Ultra 16GB Class 10 SDHC UHS-I Memory Card up to 80MB/s (SDSDUNC-016G-GN6IN) : Electronics
Amazon.com: 16GB microSD Memory Card | Micro SD Class 10 Compatible with Amazon Kindle Fire 7, Kids Edition, Fire HD 8 / HD8, Fire HD 10 / HDX 7, HDX 8.9. Fits All 7 or 8.9 inches Tablet PC | 16 GB : Electronics