Kingston Digital HyperX 3.0 DataTraveler (DTHX30/64GB) Practical - Durable metal and rubber casing with a solid lanyard loop 8-Channel Architecture Backwards Compatible - with USB 2.0 ReadyBoost Support Speed - USB 3.0: 225MB/s read and 135MB/s write USB 2.0: 30MB/s read/write Guaranteed - five-year warranty