Amazon currently has the Samsung EVO Select 64GB Micro SD card on sale for just $19.99. This is about $3 off of its regular price, good for a 13% discount here. Definitely worth picking up, if you are looking for a new micro SD card to put into your smartphone.
The Samsung EVO Select 64GB Micro SD Card sports 64GB of storage, and will work with most smartphones and even most cameras. If you have something like the Galaxy S9, Galaxy Note 8, HTC U11, LG V30, or any of a slew of other Android smartphones out there, you can use this micro SD card to expand the storage on your device. With smartphones like the Moto G5 and Moto Z2 Force, you can actually use this for Adoptable Storage, and really expand your storage, instead of just placing pictures, videos and music on it. This micro SD card does sport speeds of around 100MB/s read and 60MB/s write. That's fast enough for recording 4K video on your smartphone and writing it onto the micro SD card without needing to wait for it to happen. Definitely a good thing, since most smartphones do sport 4K video capabilities these days. While this micro SD card doesn't sport the highest capacity, it does have plenty of storage and will double the storage on most smartphones these days.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year (or $49/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.