Three-track magnetic card reader can be used to swipe and read the magnetic stripe on the back of a credit or debit card or another magnetic stripe card | Two magnetic heads allow card to be read with one swipe, whichever way magnetic stripe is facing | Configuration of the reader enables cards to be swiped backward or forward at a speed of up to 60" per second | USB keyboard emulation transmits data to host systems and applications designed to receive keyboard input | Weighs 4.5 oz.; measures 1.23 x 1.28 x 3.94 x inches (H x W x D)