TM button card of different memory. DS1990,DS1991,DS1996,DS1994, OEM logo can be laser cutted. Different colors available. TM button card 1 ... . Dallas TM1990 card, adapt original Dallas Chip, Sealed by stainless steel ... plastic chain belt of different color available. TM cards, iButton card, Dallas 90/91/94/95/96 card, security card