Our HID 1386C-37 ISOProx II RF programmed proximity cards come with a 37-bit data format and are perfect for printing secure, high-resolution access control cards. The cards have a white finish, making them ideal for customization. They are available in packs of 100 and have a CR80 card size of 86mm x 54mm. The cards operate on a 125 KHz frequency.High-quality proximity cards with 37-bit data formatWhite finish ideal for personalizationAvailable in packs of 100 with 125 KHz frequency