MIFARE DESFire EV2 4K Keyfob - thin, green

MIFARE DESFire EV2 4K Keyfob - thin, green
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Stock availability on SmartcardFocus

Coming soon - We are arranging supplies of this product. You will not be able to order just yet. Check back soon, or contact us to find out more about timescales.
In stock - This product is on the shelf in our UK warehouse and ready for use. If you place an order you can expect immediate dispatch. Depending on courier, delivery is typically next day in the UK, or 3-5 days in the US.
In stock* - This product is on the shelf in our UK warehouse, but requires some configuration or assembly before dispatch, which can add a day or two to delivery times, depending on product and order quantities.
Low stock - This product is on the shelf in our UK warehouse. If your order quantity is small you will not notice any difference from 'in stock' product. If you are ordering larger quantities, there could be delays while we wait for additional stock to arrive. Contact us to discuss options for part delivery.
Stock on the way - This product is usually on the shelf in our UK warehouse, but we have sold out and are waiting for new stock to arrive. You can still order but delivery will be slower than usual. Contact us to find out more about timescales.
Ordered on demand - We have a regular supplier but will only order when an order is placed with us and can then advise on delivery timescales. Please note that 'Ordered on demand' items are not returnable.
Contact us - There are currently supply issues with this product. You will not be able to order the product. Contact us to find out more about the nature of any issues and for advice on alternatives.
Not available - There are no plans to restock this item, it will shortly be removed from the site.
$ 3.16
Units
Per Unit
1+
$ 3.16
250+
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Prices shown are per unit, excluding tax and shipping.
Please contact us for higher volumes.
A green 45mm x 30mm x 2.2mm keyfob containing a MIFARE DESFire EV2 4K chip. This extremely durable, 100% waterproof thin keyfob is designed to be attached directly to a keyring. A useful alternative for contactless systems, it operates at 13.56 MHz wireless frequency, according to the ISO 14443A standard with the transport protocol complying to the ISO 14443-4 standard.

The MIFARE DESFire EV2 4K keyfob contains 4K bytes of non-volatile memory, a high speed triple-DES data encryption co-processor, a flexible memory organization structure, a mutual 3-pass authentication technique together with a true random number generator and an anti-tear mechanism to guarantee data integrity during contactless transactions.

MIFARE DESFire keyfobs typically operate at a distance of up to 10cm depending on the power provided by the reader.

This keyfob is NFC forum type 4 compliant.

MIFARE DESFire EV2 4K card or tag



Memory


EEPROM size [bytes]: 4096
Write-endurance [cycles]: 500 000
Data retention [years]: 25
Organisation: flexible file system

RF-Interface


Acc. to ISO 14443A: yes - up to layer 4
Frequency [MHz]: 13.56
Baudrate [kbit/s]: 106 ...848
Anticollision: bit-wise
Operating distance [mm]: Up to 100

Security


Unique Serial Number [byte]: 7, cascaded
Random Number Generator: Yes
Access keys: 14 keys per application
Multiple key sets: Up to 16 per application
Access conditions: per file
DES & DES3 security: MACing / Encipherment
AES security: MACing / Encipherment
Anti-tear supported by chip: yes
Proximity check: yes

Special Features


Multi-application : Unlimited applications, MIsmartApp
Purse functionality: Value file
Transaction MAC: Per application
Virtual Card Architecture: PICC & application level

Warranty: 1 year manufacturer's warranty


Manufacturer: NXP



DESFire 4k keyfob tag Product Briefing

DESF4 keyfob tag_product_briefing.pdf
Download everything you have read here on SmartcardFocus about the DESFire 4k keyfob tag.
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Stock availability on SmartcardFocus

Coming soon - We are arranging supplies of this product. You will not be able to order just yet. Check back soon, or contact us to find out more about timescales.
In stock - This product is on the shelf in our UK warehouse and ready for use. If you place an order you can expect immediate dispatch. Depending on courier, delivery is typically next day in the UK, or 3-5 days in the US.
In stock* - This product is on the shelf in our UK warehouse, but requires some configuration or assembly before dispatch, which can add a day or two to delivery times, depending on product and order quantities.
Low stock - This product is on the shelf in our UK warehouse. If your order quantity is small you will not notice any difference from 'in stock' product. If you are ordering larger quantities, there could be delays while we wait for additional stock to arrive. Contact us to discuss options for part delivery.
Stock on the way - This product is usually on the shelf in our UK warehouse, but we have sold out and are waiting for new stock to arrive. You can still order but delivery will be slower than usual. Contact us to find out more about timescales.
Ordered on demand - We have a regular supplier but will only order when an order is placed with us and can then advise on delivery timescales. Please note that 'Ordered on demand' items are not returnable.
Contact us - There are currently supply issues with this product. You will not be able to order the product. Contact us to find out more about the nature of any issues and for advice on alternatives.
Not available - There are no plans to restock this item, it will shortly be removed from the site.
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Bulk pricing on SmartcardFocus

Volume discounts may be available, please click on the product for further information and detailed pricing information.
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*Christmas Holidays*
Please note that we are now closed for the Christmas Holidays until 2nd January. You can still place an order online during this time, but it will not be shipped until we return. We wish a MERRY CHRISTMAS to all our customers.
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