... 915mhz 3. CR80 Size or customized 4. Card surface:blank card with jet dot mifare rfid card key features:1. Dimensions: CR80 85.5 ... x 54mm2. Thickness: 0.76mm 3. Material: PVC4. Card ... ,24C02/24C08/24C1/24C32/24C64, AT88SC102/88SC1604/88SC153,45DB041,CPU card (COS), etc. WorkingEnvironmentUsage lifespan : 5 years Recommended:-25 °C ...