Amazon offers Prime members the Lexar 128GB JumpDrive S75 USB 3.0 Flash Drive (pictured), model no. LJDS75-128ABNL, for $29.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $8.) That's tied with our April mention as the least expensive Lexar 128GB USB 3.0 flash drive we've seen. (It's also a current low by $6.) It features a 150MB/s read speed and 60MB/s write speed.

Also available is the Lexar 128GB JumpDrive S55 USB 3.0 Flash Drive, model no. LJDS55-128ABNL, for $29.99. Plus, Prime members receive free shipping. That's another price low, this time by $10. Note, allow up to five weeks for delivery.