Amazon offers Prime members the SanDisk 32GB Extreme USB 3.0 Flash Drive, model no. SDCZ80-032G-GAM46, for $18.49 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds around $8.) That's the lowest total price we could find by $11. It features read speeds of up to 245MB/s.