The STAR1M-SC by CDVI is a shadow card credential for automatically duplicating cards registered with the STAR1M standalone reader. This product has been discontinued. Scroll down to ‘Related Products’ for our recommended alternatives. The STAR1M is a standalone controller with a built-in shadow card function. A shadow card is a copy of an issued card credential. If a user’s card is lost or stolen, or they leave the business without returning it, the shadow card can be used to invalidate the credential by removing it from the system. Shadow card for use with STAR1M standalone reader Creates a copy of an issued card credential Use the shadow card to invalidate lost or stolen credentials Also available in packs of 10 and packs of 50 Enhance the security of standalone access control systems