Use cardbus cards in your laptop expresscard slotr r compatible with all types of cardbus cards and expresscard slots making this a flexible adapter for almost any situationr no driver or software means your 32 bit cardbus cards will install as if the adapter is not even therer backed by a startechcom 2 year warranty and free lifetime technical supportr r the cb2ec cardbus to expresscard adapter converts a laptop expresscard port into a cardbus port enabling you to use older cardbus cards wit