AMAG Symmetry S10401 (37-bit Proximity) Compatible Cards & Fobs
AMAG Symmetry's S10401 is a proprietary 37-bit Wiegand proximity format at 125 kHz (originating with SETEC / MDI PointGuard) widely used across enterprise, government, and institutional AMAG installations.
Does American Key Cards make AMAG Symmetry S10401 (37-bit Proximity) compatible cards?
Yes — American Key Cards supplies non-OEM AMAG Symmetry S10401 (37-bit Proximity) compatible cards and key fobs (AKC AMAG S10401-Compatible 37-Bit Card), encoded to your facility code and card-number range and ready to use on your existing AMAG (Symmetry) readers. No hardware changes, no OEM dealer minimums, at a fraction of OEM pricing.
- 125 kHz
- Frequency
- RFID prox (standard Wiegand)
- Technology
- 1
- Bit format
- 4+
- OEM part nos.
- Yes
- Cloneable
The S10401 37-bit format is the proprietary proximity credential most commonly associated with AMAG Symmetry enterprise access control, carrying a facility code (0-63) and a large card-number range on a 125 kHz proximity card. AMAG Symmetry also accepts standard HID Prox and 13.56 MHz MIFARE credentials, but S10401 remains the native format across many legacy SETEC and MDI PointGuard deployments. Our compatible 37-bit cards and fobs are programmed to your facility code and card-number range as direct drop-in replacements, without OEM-channel minimums.
AMAG Symmetry S10401 (37-bit Proximity) specifications
- Brand / OEM
- AMAG Technology
- Technology
- Passive RFID proximity (standard Wiegand)
- Frequency
- 125 kHz
- Chip
- Standard 125 kHz proximity IC programmed in the S10401 37-bit Wiegand structure (cloneable to T5577)
- Bit formats
- S10401 37-bit Wiegand (facility code 0-63, card number 0-536,870,911) — AMAG / SETEC / MDI PointGuard format
- OEM part numbers
- 920PSNNAN, 921PTNNAN, DTC-S10401, ISO-S10401
Specifications reviewed June 2026
Our compatible AMAG Symmetry S10401 (37-bit Proximity) credentials
American Key Cards manufactures non-OEM credentials engineered to work with your existing AMAG (Symmetry) readers — no hardware changes, encoded to your facility code and card-number range.
Full specifications, form factors and ordering FAQ: Specialty & legacy prox credentials
Can AMAG Symmetry S10401 (37-bit Proximity) cards be cloned?
Yes — AMAG Symmetry S10401 (37-bit Proximity) is an open format that can be reproduced from its facility code and card number. We don't copy individual cards on request, though — we manufacture new, correctly-encoded credentials for the systems you own or manage.
The S10401 37-bit format is a standard Wiegand structure carried on a 125 kHz proximity IC — like all low-frequency proximity credentials it can be read and copied with commercially available tools such as Proxmark3 and T5577 blank cards. The 37-bit length provides a larger card-number range than 26-bit Wiegand but adds no cryptographic protection. For clone-resistant credentials, AMAG Symmetry also supports 13.56 MHz MIFARE DESFire smart cards.
Where AMAG Symmetry S10401 (37-bit Proximity) is used
- Enterprise and corporate facilities running AMAG Symmetry access control
- Government, healthcare, and education sites on AMAG Symmetry infrastructure
- Badge replacement programs for legacy SETEC / MDI PointGuard installations
- Add-on credentials for new employees on existing S10401 reader deployments
Compatible readers
Related formats
You might also need
HID Prox H10301 (Standard 26-Bit)
The HID H10301 26-bit format is the most widely deployed proximity card format in North America, used on millions of doors across commercial and residential buildings.
View compatible cardsHID Corporate 1000 (35-Bit)
HID Corporate 1000 35-bit is a managed, exclusive proximity format where HID assigns each organization a unique H5XXXX format code with a 12-bit company ID and 20-bit card number, used by enrollees prior to February 2015.
View compatible cardsAWID 37-Bit
AWID 37-bit uses the H10302 structure — a 35-bit globally unique card number with no facility code — delivered via AWID's proprietary 125 kHz air interface to AWID-compatible readers.
View compatible cardsAMAG Symmetry S10401 (37-bit Proximity) — FAQ
What is the S10401 37-bit format used by AMAG Symmetry?
S10401 is a proprietary 37-bit Wiegand proximity format associated with AMAG Symmetry (and the earlier SETEC / MDI PointGuard systems). It encodes a facility code (range 0-63) and a card number (up to 536,870,911) on a 125 kHz proximity credential. The larger 37-bit structure gives a much bigger card-number range than standard 26-bit Wiegand.
Will your S10401 cards work on existing AMAG Symmetry readers?
Yes. Our compatible cards are programmed to the same 37-bit S10401 structure as OEM AMAG credentials and are interchangeable on AMAG Symmetry MR/ME readers and HID readers configured for S10401, provided the facility code matches your existing credential database. AMAG Symmetry also supports standard HID Prox and MIFARE credentials, so confirm your readers are set to read S10401.
Can S10401 proximity cards be cloned?
Yes — S10401 is a 125 kHz proximity format with no encryption, so it can be read and copied with widely available hardware such as Proxmark3 and rewritable T5577 cards. This is inherent to all low-frequency proximity formats. If clone resistance is required, move to AMAG Symmetry's 13.56 MHz MIFARE DESFire smart card credentials, which use AES-based encryption.