1. The card is fully compatible with for IC 1k card.2. The block0 of the card (the block where the UID is located) can be modified arbitrarily, and the modification can be repeated.3. Block0 can be modified directly with for ordinary IC reader and writer, no equipment is needed.4. The default password of the card is 12 F, namely FFFFFFFFFFFFparameter:Storage capacity: 8Kbit, 16 partitions, two sets of passwords for each partitionWorking frequency: 13.56MHZCommunication speed: 106KboudReading distance: 2.5-10CMReading and writing time: 1-2MSWorking temperature: -20-85Erase and write : more than 100000 Data preservation: more than 10 yearsProduction standard: 14443, 10536Application scope: Water meter prepaid, campus card, bus stored-value card, highway toll, parking lot, community managementColour: mixed colorMaterial: ABSPackage Contents:50 x UID copy cardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.