Schlage DESFire

The Schlage Mifare(r) DESFire key cards are designated by the model numbers 8420 & 8520 printed on the back side of the key card.

These key cards use encryption to make duplication challenging. Greater support for this format is expected soon.

UPLOAD PHOTO

Simply submit a photo of your key. Receive copies in as little as 1 business day after checkout.

NOT AVAILABLE FOR THIS KEY

MAIL-IN SERVICE

You will receive instructions to mail your key to our office. Turnaround can be less than 2 business days.

NOT AVAILABLE FOR THIS KEY

Technical Specifications

Manufacture: Schlage (Owned by Allegion)
Alternative Names: N/A
Format Names: Mifare® DESFire® EV1 4K
Technology: Radio Frequency Identification (RFID) using high frequency data transfer
8420 Key Type: High Frequency Contactless/Proximity Key Card in clam shell form factor
8420 Dimensions: 3.37″ x 2.125″ x 0.075″
8520 Key Type: High Frequency Contactless/Proximity Key Card in ISO glossy white finish
8520 Dimensions: 3.37″ x 2.125″ x 0.033″ (CR80)
Weight: #oz (#g)
Material: PVC Plastic
Antenna Size: Unknown
Antenna Geometry: Rectangle
Modulation: ISO/IEC 14443-4
Interface: ISO/IEC 14443-4
Typical Range: Less than 1 inch
Bit Length: Unknown
Possible Combinations: Unknown
Facility Code Range: Unknown
Storage Capacity: 4K (4096 bytes)
Encryption: AES/3DES