Portable Smart Card ReaderGo mobile with IOGEAR's Portable Smart Card reader. Our latest Smart Card reader is the perfect communications medium between a Smart Card and a host (e.g. a computer or a point-of-sale terminal). Keep the GSR203 Portable Smartcard reader in your backpack, briefcase, or even pocket. The slim design with tuck-away and clip USB cable makes transportation effortless.What is a Smart Card Reader?A Smart Card is a small portable credit-card shaped pocket-sized card with embedded integrated circuits or IC chips which can process data. The combination of the small size and IC (integrated chip) in the Samrt Card make them a valuable tool for security, data storage, and other special applications. The use of Smart Cards can improve user security by combining something a user has (the Smart Card) with something only the user should know (a PIN). This provides two factor security that is more secure than passwords alone.