Will these cards work with our existing readers?

If your readers are 13.56 MHz ISO 14443A — yes, with the right chip family and key set. If you're mid-migration with a mixed LF/HF fleet, our dual-frequency option carries both technologies on a single card. We confirm specifics in writing during the sample-kit phase.

How does AES-128 mutual authentication actually prevent cloning?

Each card holds a unique key derived from a master key + the card's UID. To unlock, the reader sends a random challenge; the card signs it with the per-card derived key; the reader verifies. A cloned card UID alone cannot produce the correct signature — the master key never leaves the issuer's HSM.

What's the read range?

0-10 cm typical for the HF interface. Practical tap range at most modern readers is 2-5 cm by design — short range is a feature, not a limitation, because it prevents accidentally authenticating the wrong cardholder in a queue.

Can we do site-specific bit formats (Wiegand 37, 56, etc.)?

Yes — we can encode the chip's emitted data in any standard or custom Wiegand format your panel expects. Provide the bit-format spec during the sample-kit phase.

What about visitor / contractor cards?

Same chip family, just issued with shorter validity windows or restricted-zone authorizations at the panel level. We can ship pre-personalized visitor cards as a small standing inventory if your security team prefers physical-stock issuance over on-site printing.

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DESFire EV3Dual-FrequencyAccess Control

Access Control Cards

Our campus access control cards are the workhorse credential for building security. Featuring advanced MIFARE DESFire EV2/EV3 and HID iCLASS SE chips, they integrate seamlessly with all major access control platforms including Nedap AEOS, Gallagher Command Centre, SALTO, and HID. Multi-technology support with dual-frequency (125kHz + 13.56MHz) enables gradual migration from legacy systems without replacing existing readers.

Ideal for

Building and dormitory access
Laboratory and research facility entry
Parking garage access
Restricted area security

Features

Multi-technology support (dual-frequency 125kHz + 13.56MHz)
Compatible with Nedap AEOS, Gallagher, SALTO, HID platforms
Custom full-color printing with photo ID integration
Magnetic stripe and barcode/QR code options
Punch slot for lanyard attachment
Available in PVC and recycled PVC materials

Specifications

Physical

MaterialPVC / Recycled PVC

SizeCR80 (85.6 x 54mm)

Thickness0.76mm standard

Technical

Frequency13.56MHz / Dual-frequency (125kHz + 13.56MHz)

FrequenciesLF 125kHz, HF 13.56MHz, Dual

Read RangeUp to 10cm (HF), up to 15cm (LF)

SecurityAES-128 encryption (DESFire EV2/EV3)

Ordering

MOQ500 pieces

Lead Time2-3 weeks standard

Compatibility

Platform / use case	Supported	Notes
Access control panels	Yes	Compatible with the major access platforms used in higher education. Specific panel notes available in our campus card systems guide.
Dual-frequency reader fleets	Yes	125 kHz LF + 13.56 MHz HF on a single card body enables phased migration from legacy proximity readers to modern contactless without forcing a fleet swap.
Wireless lock systems	Yes	Dormitory and office wireless locks reading 13.56 MHz HF credentials work out of the box; LF-only locks are supported via the dual-frequency variant.
Visitor management & temporary credentials	Yes	Short-validity cards with the same chip family for contractors, conferences, and visiting researchers.

Encoding options

Site code + card number in the panel-specified bit format
AES-128 diversified keys with mutual authentication on contactless reads
Optional Wiegand 26 / 34 / 37 / 56 bit format mapping
Anti-passback support via per-card UID tracking at the panel

Sample-kit workflow

1Share your access platform name + reader manufacturer + bit format expected by the panel.
2We quote and ship 5 pre-encoded sample cards in your site code + a small card-number range.
3You test entry at perimeter, dorm, and lab readers.
4Adjust key derivation or bit format if anything mis-reads.
5Full order from your final site code + cardholder range + artwork.

What to watch for

Common pitfalls during a card-program rollout and how we address them.

⚠ Legacy 125 kHz cards still in circulation after a HF rollout

Dual-frequency cards bridge the gap — same physical card works at old LF readers and new HF readers during the migration window.

⚠ Reader doesn't decrypt the AES-128 challenge correctly

We verify the panel's expected key derivation function during sample-kit testing and align before production.

⚠ Stolen-card replay attempts

Mutual authentication with per-session challenges defeats replay; cloning the UID alone gives no entry signal.

Frequently asked questions

Will these cards work with our existing readers?: If your readers are 13.56 MHz ISO 14443A — yes, with the right chip family and key set. If you're mid-migration with a mixed LF/HF fleet, our dual-frequency option carries both technologies on a single card. We confirm specifics in writing during the sample-kit phase.
How does AES-128 mutual authentication actually prevent cloning?: Each card holds a unique key derived from a master key + the card's UID. To unlock, the reader sends a random challenge; the card signs it with the per-card derived key; the reader verifies. A cloned card UID alone cannot produce the correct signature — the master key never leaves the issuer's HSM.
What's the read range?: 0-10 cm typical for the HF interface. Practical tap range at most modern readers is 2-5 cm by design — short range is a feature, not a limitation, because it prevents accidentally authenticating the wrong cardholder in a queue.
Can we do site-specific bit formats (Wiegand 37, 56, etc.)?: Yes — we can encode the chip's emitted data in any standard or custom Wiegand format your panel expects. Provide the bit-format spec during the sample-kit phase.
What about visitor / contractor cards?: Same chip family, just issued with shorter validity windows or restricted-zone authorizations at the panel level. We can ship pre-personalized visitor cards as a small standing inventory if your security team prefers physical-stock issuance over on-site printing.

Ready to order?

Get a custom quote for access control cards tailored to your institution's needs.