The MiniMag swipe reader is designed for POS and desktop applications where space is at a premium.  The entire unit is just 90mm long (about the length of a standard credit card), giving it the smallest footprint of any unit with comparable features.  It reads up to three tracks of information with a single swipe in either direction and has both beeper and LED indicators to signal a successful read.  The unit can be programmed to divide, rearrange, edit and validate fields of entered data.