MIFARE Classic 1K Keyfob Supplier
RFIDAK supplies MIFARE Classic 1K keyfobs from our Shenzhen factory with 500 keyfobs minimum order, 10-14 working days lead time, and full ISO/IEC 14443A compliance — used for hotel key cards (saflok / vingcard / onity legacy) and apartment access control.
Quick spec — MIFARE Classic 1K Keyfob
Chip technical brief
MIFARE Classic 1K (NXP MF1ICS50) is a 13.56 MHz HF chip compliant with ISO/IEC 14443 Type A, providing 1,024 bytes EEPROM partitioned into 16 sectors of 4 blocks. Each sector is protected by a pair of 48-bit keys (Key A / Key B) using the proprietary Crypto-1 cipher. Crypto-1 has been considered cryptographically broken since 2008, so MIFARE Classic 1K is no longer recommended for high-security deployments — but it remains the dominant chip in legacy hotel locks, public transit (some Asian and LATAM systems), gym access and small-business membership cards because of its low cost and broad reader compatibility. RFIDAK supplies MIFARE Classic 1K cards and credentials with optional UID-only encoding, sector key personalization under NDA, or pre-encoded data block writing for system integrators replacing legacy stock.
Buyer one-liner
Lowest-cost 13.56 MHz HF chip, broadest reader compatibility, used for legacy access and hotel keys.
Typical use cases
- ▸ Hotel key cards (Saflok / VingCard / Onity legacy)
- ▸ Apartment access control
- ▸ Gym & club membership
- ▸ Public transit (legacy systems)
- ▸ Loyalty cards
Compatible readers
- ▸ HID OMNIKEY 5021/5022/5023
- ▸ ACR122U
- ▸ Identiv uTrust 4710F
- ▸ Generic CR-80 readers
Keyfob manufacturing
RFID keyfobs are compact key-ring credentials designed for daily mechanical wear that breaks thin PVC cards within months. The standard form is a 33 × 28 × 4.5 mm ABS plastic body with the chip + coiled antenna molded inside, plus an integrated key-ring loop. RFIDAK produces keyfobs in ABS (default), PPS for high-temperature environments (commercial laundry, kitchens), epoxy for translucent designer finishes, FR4 fiberglass for industrial durability, and natural materials (leather, wood) for premium hotel / corporate gifting. Keyfobs ship in poly bags of 100 with 10 bags per inner carton; standard MOQ is 500 keyfobs, half the card MOQ because keyfob assembly is more flexible.
Typical sizes
- • 33 × 28 × 4.5 mm (standard ABS)
- • Φ32 × 4.5 mm (round)
- • 35 × 25 mm (compact)
Materials
- • ABS plastic
- • PPS (high-temperature)
- • Epoxy (translucent)
- • FR4 fiberglass
- • Leather wrap
- • Wood
- • Silicone
Compliance
- • CE
- • RoHS
- • FCC Part 15
Why source MIFARE Classic 1K keyfobs from RFIDAK
MIFARE Classic 1K keyfobs are the daily-carry alternative to thin PVC cards for gym chains, fitness clubs, apartment buildings, and small-business membership programs. The 33 × 28 × 4.5 mm ABS body resists mechanical wear that breaks PVC cards within months on a keychain. Standard MOQ for keyfobs is 500, making them cost-effective for small-business and franchise reorders.
Buyer snapshot
Gym franchises, fitness clubs, apartment building managers, and small-business membership programs (yoga studios, private clubs). Most buyers reorder 1,000-2,000 keyfobs annually for member churn replacement.
Anonymized project examples
Example 1
Gym and fitness franchises are the archetypal keyfob buyers: member churn drives annual reorder volume of 30-50% of the installed base, so most chains standardize 2-4 brand colorways and reorder on a 3-4 month cycle rather than holding a year of stock.
Example 2
Boutique studios (yoga, pilates, private clubs) typically pair smaller keyfob runs with per-fob personalization — laser-engraved member numbers or sequential UID lists matched to the membership database at issuance.
Compare with other keyfobs
Other chips that work in keyfob format. Use this as a quick selector before requesting samples — RFIDAK ships free 3-5 unit test packs across multiple chip options.
| Chip | Memory | Security | Typical Use | Cost Tier |
|---|---|---|---|---|
| MIFARE Classic 1K (this page) | 1,024 bytes EEPROM | Crypto-1 (deprecated since 2008 | Hotel key cards (Saflok / VingCard / Onity legacy) | $ |
| MIFARE Classic 4K | 4,096 bytes EEPROM | Crypto-1 (deprecated | Legacy multi-app cards | $$ |
| MIFARE Plus S 2K | 2,048 bytes EEPROM | AES-128 in Security Level 3 | Migration from MIFARE Classic 1K | $$$ |
| MIFARE DESFire EV1 4K | 4,096 bytes EEPROM, up to 28 applications | AES-128, 3DES, DES | Transit ticketing | $$$$ |
| MIFARE DESFire EV2 4K | 4,096 bytes EEPROM, up to 32 applications, 32 files per app | AES-128, Originality Signature (ECDSA), Transaction MAC, Proximity Check, Virtual Card Architecture | New transit deployments | $$$$ |
Recommended RFIDAK SKUs
These products in our catalog ship with MIFARE Classic 1K as a chip option.
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Frequently asked — MIFARE Classic 1K keyfobs
What is the minimum order quantity for MIFARE Classic 1K keyfobs? ▾
500 keyfobs is the standard MOQ. Smaller pilot batches may be possible at +15-30% per unit. For 5,000+ orders, volume discounts of 5-10% typically apply; 50,000+ orders move to direct-import pricing tiers.
Which readers are tested compatible with RFIDAK MIFARE Classic 1K keyfobs? ▾
HID OMNIKEY 5021/5022/5023, ACR122U, Identiv uTrust 4710F, Generic CR-80 readers. RFIDAK ships free 3-5 unit test packs to integrators evaluating reader compatibility before bulk commitment.
Can RFIDAK pre-encode MIFARE Classic 1K keyfobs to our specification? ▾
Yes. For UID-only chips, customer-supplied EPC / NDEF / data-block content is written before shipment. Per-unit pre-encoding pricing is typically +$0.05-0.20 depending on complexity.
What lead time should I plan for MIFARE Classic 1K keyfobs to major export markets? ▾
10-14 working days production from artwork approval, then 4-6 days DHL air or 18-30 days sea freight. Total door-to-door is typically 18-22 days air or 30-45 days sea. CE-marked products clear EU customs without additional documentation.
Are RFIDAK MIFARE Classic 1K keyfobs compliant with CE? ▾
Yes. RFIDAK MIFARE Classic 1K keyfobs carry CE, RoHS, FCC Part 15 compliance. Test reports are available on request under NDA.
Ready to source MIFARE Classic 1K keyfobs?
Get pricing in 24 hours and free 3-5 unit samples to validate before bulk commitment. MOQ: 500 keyfobs · Lead time: 10-14 working days.
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