Amazon offers the Kingston 16GB DataTraveler MicroDuo USB 3.0 Flash Drive, model no. DTDUO3/16GB, for $7.99. (Rakuten Shopping offers it for the same price.) Plus, Prime members receive free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $8.02.) That's the lowest total price we could find by $1. It features write speeds up to 10MB/s, read speeds up to 70MB/s, and both USB and micro USB compatibility.

Also available is the Kingston 64GB DataTraveler MicroDuo USB 3.0 Flash Drive for $22.99. (Rakuten Shopping has it for the same price.) Prime members receive free shipping. (As above, non-members can spend $35 or more to dodge an $8 shipping fee.) That's a buck under our mention from March and the lowest total price we've seen. (It's also a current low by $2.) It features the same specifications as the above model, except for having a slightly faster maximum write speed of up to 15MB/s. Both deals end May 24.