It's the cheapest we've seen so far for a microSD card of this capacity. The Class 10, UHS-1 SDXC card will afford your smartphone or tablet a lot more breathing space, though it does not ship with a full-size SD adapter for use with, say, a DLSR camera.
The revised price represents a humongous $70 saving on the list price. There doesn't appear to be an expiry date or time on the deal, though these offers don't tend to stick around for too long.
If you'd like to snag yourself a 128 GB microSD card on the cheap, you can navigate through to the Amazon page via the source.