As one of its daily deals, Amazon offers the Sandisk 128GB Ultra UHS-I Class 10 microSDXC Memory Card, model no. SDSQUNC-128G-AN6IA, for $39.99 with free shipping. That's the lowest total price we could find by $10, although it was $4 less on Cyber Monday. It includes an SD adapter and features read speeds of 80mb/s. Deal ends today.