Silicon Power USA via Amazon offers its Prime members the Silicon Power 64GB Blaze B30 USB 3.0 Swivel Flash Drive, model no. SP064GBUF3B30V1K, for $19.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it costs $8.02.) That's $8 under our April mention and the lowest total price we could find today by $10.