Currently on sale for $59.95, a good price in itself.
For this to be $49.95, you need to open a new private window where you will be prompted to enter your email for $10 off your first order. Even better, most of the time there will already be a 50% off delivery deal applied which does appear to stack with the $10 off code.
Specifications
Capacity: 64GB
Type: Class 10 UHS-I
Read Transfer Speed: Up to 95MB/s
Suitable for use with: microSDXC host devices only
Compatibility: USB 2.0 & USB 3.0 with USB 3.0 reader
Model: FMLSD633X64R
Brand: Lexar
This product has a manufacturer's limited lifetime warranty for the card and a one-year limited warranty for the USB 3.0 reader
I'd rather pay $25.
I know this one may be faster, but I don't think it makes a difference with regular smartphone use.