Samsung MUF-64BA/AM 64GB USB 3.0 Flash Drive for $17.99 shipped after promo code 0517RAGEMC81. Here is a screenshot for reference. Alternatively, it is available at Amazon for $17.99 with free shipping on orders over $49. It has metal casing for durability and a compact body. It is water proof, shock proof, magnet proof, temp proof, and x-ray proof with a 5-year warranty.