Compatible with Keri Systems
Keri Systems-compatible cards & key fobs
Security ID Systems supplies compatible replacement credentials for 3 Keri Systems formats, encoded by specification to read identically on your existing Keri Systems equipment. A fraction of OEM pricing — and we are not affiliated with Keri Systems.
Compatible Keri Systems formats (3)
Keri MS / Megastar (proprietary)
Compatible with Keri Systems
- Chip
- T5577 / EM4305
- Format
- Keri proprietary PSK K-format / MS (Megastar…
Keri Systems MS / NXT (K-Format)
Compatible with Keri Systems
- Chip
- T5577 / EM4305
- Format
- Keri proprietary K-format / MS (Megastar) PS…
Keri NXT / NXT-C (HID-comparable)
Compatible with Keri Systems
- Chip
- T5577 / EM4305
- Format
- Keri NXT 'N'-serial-prefix format; FSK2 RF/5…
Keri Systems 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. MIFARE and DESFire are registered trademarks of NXP B.V.
Keri Systems compatibles — common questions
Are these genuine Keri Systems cards?
No — every credential is an independently manufactured compatible product, not an Keri Systems-branded one. Security ID Systems is independent and is not affiliated with, authorized by, or endorsed by Keri Systems. Our cards are engineered by specification to read identically on Keri Systems readers.
Which Keri Systems formats can you supply compatibles for?
We currently document 3 compatible Keri Systems formats, 2 of which are rare formats with no compatible sold elsewhere online. If your exact Keri Systems format isn't listed, send the part number or a sample — we cover more than we publish.
Will a compatible card work in my existing Keri Systems system?
Yes, when encoded correctly. We match the frequency, data structure and — where applicable — your facility code and card-number range, so the credential presents exactly what your readers expect. We confirm compatibility before production.
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Need a compatible Keri Systems credential?
Send the part number printed on your card or a photo of the reader. We confirm compatibility before you order — and we cover the specialist formats nobody else lists.