Hotel Lock Key Cards

Adel A93 Key Card Compatible

13.56 MHz HF C-tier format

A compatible replacement for Adel A93 (COB) — a 13.56 MHz contactless smart card, encoded by specification to read identically on your existing readers. Order single spares or bulk quantities at a fraction of OEM list pricing.

How the compatible Adel A93 (COB) works

The Adel A93 (COB) is a 13.56 MHz high-frequency contactless credential read over the ISO/IEC 14443 air interface. Its data structure is Adel A93 1K lock encoding (COB-included). When you present a credential, the reader decodes that exact structure and passes it to your access-control panel as a card number it recognises.

We build the compatible Adel A93 (COB) by encoding the matching data structure onto a programmable 13.56 MHz contactless smart card (ISO/IEC 14443-A) chip. Once written, the credential presents the same bits, the same facility code, and the same card number your reader already accepts. That is what "compatible by specification" means: not a generic look-alike, but a credential engineered for the exact format your system expects.

To order, tell us the part number or format printed on your existing Adel card, and our specialists confirm the encoding before anything ships. Bulk and reorder quantities are welcome — pricing is a fraction of OEM list, and every credential is verified to read on your existing equipment.

Also known as

Adel · A93 · Adel 1K · M119

Adel and all other brand and product names are trademarks of their respective owners. Security ID Systems is an independent manufacturer and supplier of compatible access-control credentials and is not affiliated with, authorized by, sponsored by, or endorsed by these companies. Brand and format names are used only to identify the systems our products are compatible with.

Adel A93 (COB) — common questions

Is this a genuine Adel card or a compatible one?

It is an independently manufactured compatible credential — engineered to the same specification as the Adel A93 (COB) so it reads identically on your existing readers, but it is not an Adel-branded product. Security ID Systems is independent and not affiliated with Adel; your access-control panel accepts the credential exactly the same way.

What chip is the compatible Adel A93 (COB) encoded on?

It is encoded on a 13.56 MHz contactless smart card (ISO/IEC 14443-A) programmable chip. That platform carries the original 13.56 MHz HF data structure precisely, so the credential presents the same information your readers already accept.

What frequency and format is the Adel A93 (COB)?

It operates on 13.56 MHz HF, using adel a93 1k lock encoding (cob-included). Matching that exact frequency and data structure is what makes a compatible credential work — a card on the wrong band or bit length simply will not read.

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Order a compatible Adel A93 (COB)

Send the part number or a photo of your card and reader. We verify the encoding before production and ship worldwide — including the rare formats no one else lists.