Amazon offers Prime members the SanDisk Fit 64GB USB 3.0 Flash Drive, model no. SDCZ43-064G-G46, for $29.99 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $8.05.) That's the lowest total price we could find by $8. It features read speeds of 130 MB/s and is backwards compatible.

This item has an estimated ship time of two to four weeks.