The Wavelynx Dual Tech EV3 4K + Prox ISO Card (P/N 50M4) is a dual-frequency smart card combining 125 kHz proximity with 13.56 MHz MIFARE DESFire EV3, sold here as a bulk pack of 100 factory programmed credentials.
Like its 8K counterpart, the 50M4 combines 125 kHz proximity with 13.56 MHz MIFARE DESFire EV3 technology in one credential, so a single card works across both legacy proximity readers and newer EV3 smart readers during a phased upgrade. The 4K memory option is a cost-effective choice for deployments that only need the smart-card side for access control, without a second onboard application. Every card in this pack of 100 ships factory programmed to your encryption keys, bit format, facility code, and ID range, ready to enroll on arrival.
Key Features
- Dual-frequency: 125 kHz proximity plus 13.56 MHz MIFARE DESFire EV3 in a single card
- Bridges legacy prox readers and new EV3 smart readers during migration
- 4K memory — right-sized for straightforward access control deployments
- EAL 5+ certified security on the MIFARE DESFire EV3 side
- Factory-programmed to your encryption keys, bit format, facility code, and ID range
- Sold in bulk packs of 100 for consistent, large-scale credential rollouts
Technical Specifications
| Manufacturer |
Wavelynx |
| Part Number |
50M4 |
| Chip Technology |
Dual-frequency proximity + MIFARE DESFire EV3 |
| Frequency |
125 kHz (LF) + 13.56 MHz (HF) |
| Memory |
4K (smart-card side) |
| Card Format |
CR80, 3.37" × 2.13" × 0.03" (85.6 × 54.0 × 0.8 mm) |
| Material |
Composite PVC / PET, printable surface |
| Color |
White |
| Security |
EAL 5+ certified chip, AES-128 encryption |
| LEAF Compatibility |
LEAF Si enabled standard; LEAF Cc available by request |
| Warranty |
Lifetime |
| Pack Quantity |
100 cards per pack |
Compatibility
Compatible with Wavelynx Ethos multi-technology readers and other reader hardware in the LEAF Community ecosystem. LEAF Si is enabled standard on every credential, with LEAF Cc available by request for custom deployments. Each card ships factory-programmed and ready to enroll, with support for standard or custom encryption keys, standard and unique bit formats, and your choice of facility code and ID range.
Ideal For
- Sites migrating from 125 kHz proximity to 13.56 MHz smart credentials in phases
- Deployments that need dual-frequency coverage without extra onboard memory
- Multi-building campuses upgrading readers on a rolling schedule
- Budget-conscious rollouts that still need day-one prox compatibility
Frequently Asked Questions
Should I choose the 50M4 or the 50M8?
Choose the 50M4 if you only need the smart-card side for access control. Choose the 50M8 if you want extra memory for a second application such as payment or secure printing.
Will this work with my existing proximity readers?
Yes. The 125 kHz side of the card is designed to work with standard proximity readers already installed at your facility, while the 13.56 MHz side is ready for any EV3 smart readers you add.
Is the card printable for photo IDs?
Yes, the composite PVC/PET surface supports standard direct-to-card printing.
How is programming handled?
Cards ship factory-programmed to your encryption keys, bit format, facility code, and ID range, so there's no on-site encoding step before deployment.
Bridge old and new access control hardware without issuing two credentials — the Wavelynx Dual Tech EV3 4K + Prox ISO Card is available in bulk packs of 100.
