21st Century Distributing

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Security | Access Control
     Sort by: Category | Item | Price ↓ | Price ↑       15 Items

Alarm.com ADC-AC-CARD-50D4 | Access Control Mifare Desfire EV2 Smart Proximity Access Cards (PACK OF 25) SPECIAL ORDER

Model: ADC-AC-CARD-50D4

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Alarm.com ADC-AC-CARD-50H4 | Access Control MIFARE DESFire EV2 Smart Access Cards (Pack of 25) SPECIAL ORDER

Model: ADC-AC-CARD-50H4

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Alarm.com ADC-AC-ET10 | Access Control Mullion Reader with Proximity MIFARE DESFire NFC and Bluetooth Low Energy SPECIAL ORDER

Model: ADC-AC-ET10

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Alarm.com ADC-AC-ET20 | Access Control Single Gang Reader with Proximity MIFARE DESFire NFC and Bluetooth Low Energy SPECIAL ORDER

Model: ADC-AC-ET20

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Alarm.com ADC-AC-ET25 | Access Control Single Gang With Keypad Reader with Proximity MIFARE DESFire NFC and Bluetooth Low Energy SPECIAL ORDER

Model: ADC-AC-ET25

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Alarm.com ADC-AC-F8P | Access Control 8 Auxiliary Output Board SPECIAL ORDER

Model: ADC-AC-F8P

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Alarm.com ADC-AC-FOB-60L8 | Access Control EV3 8K Keyfob (Pack of 25) SPECIAL ORDER

Model: ADC-AC-FOB-60L8

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Alarm.com ADC-AC-FPV4 | Access Control DC Power Supply Board Only SPECIAL ORDER

Model: ADC-AC-FPV4

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Alarm.com ADC-AC-X100 | Access Control HID Aero Door/Reader Interface Module SPECIAL ORDER

Model: ADC-AC-X100

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Alarm.com ADC-AC-X1100 | Access Control HID Aero Intelligent Door Controller SPECIAL ORDER

Model: ADC-AC-X1100

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Alarm.com ADC-AC-X1100-2PSE | Access Control HID Aero X1100 Two Door Controller & Power Kit SPECIAL ORDER

Model: ADC-AC-X1100-2PSE

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Alarm.com ADC-AC-X1100-4PSE | Access Control HID Aero X1100 Four Door Controller & Power Kit SPECIAL ORDER

Model: ADC-AC-X1100-4PSE

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Alarm.com ADC-AC-X200 | Access Control X200 Input Monitor Expansion Module SPECIAL ORDER

Model: ADC-AC-X200

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Alarm.com ADC-AC-X300 | Access Control X300 Output Control Expansion Module SPECIAL ORDER

Model: ADC-AC-X300

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Alarm.com ADC-AC-B100 | Access Control Secondary Power Supply Board SPECIAL ORDER

Model: ADC-AC-B100

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Toll Free: 800.849.0647
Phone: 919.779.0273
Fax: 919.779.8994
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21st Century Distributing
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Direct Number: (470) 905-3397
*Nashville Branch is open until 6:30pm Eastern
5:30 AM Friday, January 23, 2026
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