The SanDisk 128GB Ultra microSDXC UHS-I Memory Card with Adapter is the best-selling microSD card on Amazon’s entire website, and it was down to an all-time low of $19.99 all throughout Black Friday and Cyber Week. That price is phenomenal for this lightning-fast microSD card with plenty of storage space, but Amazon somehow just beat it. Order one right now and you’ll pay just $18.21, which is completely unheard of. There’s no way stock is going to last very long at this price though, so get in on the action while you still can.

Here’s what you need to know from the product page:
- Ideal for Android-based smartphones and tablets
- Transfer read speeds of up to 100MB/s (Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors.)
- Rated A1 for faster app performance (Results may vary based on host device, app type and other factors.)
- UHS Speed Class U1 and Speed Class 10 for Full HD video recording and playback (Full HD (1920×1080) video support may vary based upon host device, file attributes, and other factors.)
- Shockproof, temperature-proof, waterproof, and X-ray-proof (Card only)
- 10-year limited manufacturer warranty