Thin smart card

A method of making cards with devices, the method comprising the steps of:

• (a) providing cards with devices such that each of the cards is at most about two-thirds as thick as the thickest device;
• (b) attaching the devices to respective cards;
• and
• (c) creating apertures respectively in the cards, so that said apertures are located in proper alignment registry with the devices when the cards are aligned for stacking and wherein the cards are electrically isolated from each other when the cards are stacked and properly aligned with each other.

A system comprising:

• (a) a first card bearing at least one device;
• and
• (b) a second card having at least one aperture that is configured to accommodate said at least one device when said first card is stacked onto said second card and said second card is properly aligned with said first card, so as to allow said at least one device to protrude into said at least one aperture;
• wherein said cards are at most about two-thirds as thick as said at least one device, and wherein said first card is configured to be electrically isolated from said second card when said cards are stacked and properly aligned with each other.

A system comprising:

• (a) a first card bearing at least one device, wherein said at least one device includes a USB connector;
• and
• (b) a second card having at least one aperture that is configured to accommodate said at least one device when said first card is stacked onto said second card and said second card is properly aligned with said first card, so as to allow said at least one device to protrude into said at least one aperture;
• wherein said first card is configured to be electrically isolated from said second card when said cards are stacked and properly aligned with each other.