You can grab a 128GB SanDisk microSDXC memory card for less than $27 today

PCWorld 

If you have a new Android phone on the way thanks to Prime Day, you can triple the storage with this SanDisk 128GB microSDXC Memory Card Ultra for just $26.95 on B&H PhotoRemove non-product link. And what's more you can get it right now--the Amazon deal is currently out of stock. This memory card is built to keep your data safe: it's waterproof, X-Ray-proof, and shockproof. With an SD Class 10 rating and an Ultra High Speed Class 1 rating, it features read speeds up to 80 MB/s and write speeds up to MB/s. It also comes with an SD adapter for increased device compatibility.