This is a faster standard replacing the PC Card interface, and is used in newer laptops. It was introduced in 2003, and comes in two flavours— ExpressCard 34 and ExpressCard 54. The numbers represent the width of the cards in mm. Devices that use this interface to connect to laptops are about 2.5 times faster than the PC Card interfaces, considerably lighter, and consume less power. Peripherals that can be used in the ExpressCard slot include wireless modems, TV-Tuner cards, memory sticks, and wireless modems.