Amazon currently has a pretty incredible price for the Samsung EVO Select 64GB Micro SD Card. It is currently priced at $19.99, which is only $3 off of its regular price, but it is also one of the few times it has dropped in price. Typically it'll drop to $20.99, but never below the $20 mark.
This micro SD card from Samsung is a great one to pick up for a few reasons. One being the fact that it is an EVO Select model and has read and write speeds of 100MB/s. That is fast enough to write 4K footage from the camera on your smartphone or even a GoPro camera. Additionally, it has 64GB of storage - of which, around 59GB will be usable storage. Which is going to be a great addition to your smartphone, especially if you are running out of storage. It will work on devices like the Galaxy S8, Galaxy Note 8, HTC 10, LG V30 and many more.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap next-day shipping if you need it here extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime by hitting the link below. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year. Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.