Samsung Pro Plus 128GB MicroSD Card + Reader | $21 | Amazon
When it comes to recording 4K on your phone, drone, or high-performance camera, any old microSD card won’t do. You need something with high write speeds. The Samsung Pro Plus microSD goes up to 160MB/s. At 128GB, it’ll record up to 7.5 hours of 4K video. It comes with a card reader to easily plug into any USB port and it’s also discounted nearly half off. Get one for just $21 and start taking beautiful 4K footage right away.