{"product_id":"mifare-desfire-ev2-4k-fob","title":"MIFARE DESFire EV2 4K Fob","description":"\u003ch2\u003eMIFARE DESFire EV2 4K Secure Key Fob (Box of 25)\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTAG-EV2\u003c\/strong\u003e is a professional-grade, high-security contactless key fob designed for rigorous access control environments. Built on the \u003cstrong\u003eMIFARE DESFire EV2\u003c\/strong\u003e platform by NXP, this 4K fob provides hardware-level encryption and high-speed data transmission in a compact, rugged form factor that fits easily on any keyring.\u003c\/p\u003e\n\u003cp\u003eUnlike standard proximity tags, the TAG-EV2 is engineered for organizations that require a higher tier of security for building access, and closed-loop payment systems without the need for a traditional plastic card.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Number:\u003c\/strong\u003e TAG-EV2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Circuit (IC):\u003c\/strong\u003e MIFARE DESFire EV2 (NXP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Capacity:\u003c\/strong\u003e 4 KB EEPROM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Frequency:\u003c\/strong\u003e 13.56 MHz (High Frequency)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Protocol:\u003c\/strong\u003e ISO\/IEC 14443 A 1-4 compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Transfer Rate:\u003c\/strong\u003e Up to 848 Kbit\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity:\u003c\/strong\u003e AES-128 hardware cryptographic engine with Proximity Check\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e Reinforced plastic key fob with stainless steel split ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSecurity and Performance Features\u003c\/h3\u003e\n\u003ch4\u003e1. Enhanced Cryptography \u0026amp; Proximity Check\u003c\/h4\u003e\n\u003cp\u003eThe TAG-EV2 utilizes \u003cstrong\u003eAES-128 encryption\u003c\/strong\u003e for authentication and data privacy. This chip version includes a \"Proximity Check\" feature, which helps protect against relay attacks by ensuring the fob is physically close to the reader during a transaction.\u003c\/p\u003e\n\u003ch4\u003e2. Scalable Multi-Application Support\u003c\/h4\u003e\n\u003cp\u003eThe EV2 architecture allows for a virtually unlimited number of applications on a single fob, restricted only by the 4KB memory capacity. This enables one device to handle office entry, parking gate access, and cafeteria loyalty programs simultaneously.\u003c\/p\u003e\n\u003ch4\u003e3. Ruggedized Durability\u003c\/h4\u003e\n\u003cp\u003eDesigned for daily use, the TAG-EV2 casing is built from high-impact ABS plastic. It is moisture-resistant and shockproof, making it a more durable alternative to PVC cards for users in active environments or outdoor job sites.\u003c\/p\u003e\n\u003ch4\u003e4. Infrastructure Compatibility\u003c\/h4\u003e\n\u003cp\u003eThe TAG-EV2 is backward-compatible with existing MIFARE DESFire EV1 reader infrastructure. This enables a phased security update, allowing organizations to deploy more secure credentials today while maintaining compatibility with legacy hardware.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Fact Sheet\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCommon Use Cases\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eEnterprise Access Control, Transit, Government ID, Secure Micropayments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnvironmental Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIP67\/IP68 Equivalent (Waterproof and Dustproof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWrite Endurance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMinimum 500,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eData Retention\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUp to 10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-25°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"CDVI","offers":[{"title":"Default Title","offer_id":51321525731623,"sku":null,"price":299.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0002\/0063\/8524\/files\/CV-TAGEV2.jpg?v=1776866673","url":"https:\/\/groovebadges.com\/products\/mifare-desfire-ev2-4k-fob","provider":"Groove Identification Solutions","version":"1.0","type":"link"}