{
  "url": "https://proudtek.com/products/rfid-keyfobs/rfid-coin-keyfob/",
  "sourceUrl": "https://proudtek.com/products/rfid-keyfobs/rfid-coin-keyfob/",
  "title": "RFID Coin Keyfob — Vending & Laundry Token",
  "description": "RFID coin keyfobs are compact round credentials (Ø 25 / 30 mm × 3-4 mm, pocket + keyring carry) engineered for cashless micropayment in laundry rooms,...",
  "kind": "product",
  "imageUrl": "https://proudtek.com/landing-images/rfid-coin-keyfob.jpg",
  "imageAlt": "RFID coin keyfob for cashless laundry vending and micropayment systems",
  "imageGallery": [
    {
      "url": "https://proudtek.com/landing-images/rfid-coin-keyfob.jpg",
      "alt": "RFID coin keyfob for cashless laundry vending and micropayment systems"
    }
  ],
  "breadcrumbs": [
    {
      "name": "Home",
      "url": "https://proudtek.com/"
    },
    {
      "name": "Products",
      "url": "https://proudtek.com/products/all/"
    },
    {
      "name": "RFID Coin Keyfob — Vending & Laundry Token",
      "url": "https://proudtek.com/products/rfid-keyfobs/rfid-coin-keyfob/"
    }
  ],
  "summary": [],
  "faq": [
    {
      "question": "Can RFID coin keyfobs retrofit existing coin-operated machines?",
      "answer": "Yes. Most major cashless payment controller manufacturers (Nayax, USA Technologies, Setomatic) offer retrofit modules that install alongside existing coin mechanisms. The RFID reader module accepts coin keyfob taps while the coin slot remains operational during the transition period. Full conversion typically takes 15-30 minutes per machine."
    },
    {
      "question": "How secure is the stored-value system against cloning or balance fraud?",
      "answer": "MIFARE DESFire EV2/EV3 chips use AES-128 encryption and mutual authentication between the chip and reader. Each transaction is cryptographically signed, preventing cloning, replay attacks and balance manipulation. The chip's unique hardware ID (UID) is factory-locked and cannot be duplicated. This is the same security level used in major public transit payment systems worldwide."
    },
    {
      "question": "What happens if a user loses their coin keyfob?",
      "answer": "Since the prepaid balance is stored in the operator's server-side database (linked to the coin's unique chip ID), a lost coin can be remotely deactivated and the remaining balance transferred to a replacement coin. The lost coin becomes inoperable at all readers. This is a significant advantage over metal coins or tokens, where loss means permanent loss of value."
    },
    {
      "question": "Should I specify MIFARE Classic or DESFire EV3 for a new laundry or vending rollout?",
      "answer": "Specify DESFire EV3. MIFARE Classic 1K uses the CRYPTO-1 cipher, which was publicly broken in 2008 (Garcia et al.) and can be cracked in seconds with a Proxmark3 and open-source tools — enabling counterfeit coins with inflated balances. DESFire EV3 uses AES-128 mutual authentication and has no known cryptographic breaks. The per-coin cost difference is approximately $0.25, which is recovered the first time a counterfeit incident is prevented. NXP and the German BSI both recommend migration."
    },
    {
      "question": "How do I handle offline vending machines with intermittent connectivity?",
      "answer": "Use DESFire EV2/EV3 value files for on-chip balance storage with AES-128 protection. The controller debits the value file during a transaction without needing to reach the backend. When connectivity is restored, the controller uploads the transaction log and reconciles against the backend record. Nayax VPOS Touch, USA Technologies ePort G10-S and Setomatic SpyderWash 3 all support this hybrid online/offline model. Do not attempt offline storage on MIFARE Classic — a cloned coin with a forged balance will not be detected until the reconciliation window, by which point the counterfeit coin may have been used at dozens of machines."
    }
  ],
  "procurementFields": [
    {
      "label": "Best fit",
      "value": "Best for linen, garment, and uniform identification in commercial laundry and textile tracking workflows."
    },
    {
      "label": "Key options",
      "value": "Form Factor: Compact keyfob form factor for handheld access credentials."
    },
    {
      "label": "Customization",
      "value": "Confirm artwork, encoding, material, chip, and finish requirements before quoting."
    },
    {
      "label": "Quote checklist",
      "value": "Reference RFID Coin Keyfob — Vending & Laundry Token in your inquiry so the matching product page stays attached to the quote. Compact keyfob form factor for handheld access credentials. Share target chip or protocol, quantity, format..."
    }
  ],
  "collectionGuidanceFields": [],
  "coreGuidanceFields": [],
  "articleGuidanceFields": [],
  "sourceLinks": [],
  "related": [],
  "productSpecs": [
    {
      "name": "Form Factor",
      "value": "Compact keyfob form factor for handheld access credentials."
    }
  ],
  "machineJsonUrl": "https://proudtek.com/machine/products/rfid-keyfobs/rfid-coin-keyfob.json",
  "machineTextUrl": "https://proudtek.com/machine/products/rfid-keyfobs/rfid-coin-keyfob.txt",
  "author": {
    "name": "Proud Tek Co., Limited"
  },
  "publisher": "Proud Tek Co., Limited",
  "credentials": [
    "ISO 9001:2015",
    "ISO 14001:2015",
    "RoHS Compliant",
    "CE Marking",
    "REACH Compliant"
  ],
  "generatedAt": "2026-03-16T01:42:30.697Z"
}