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AXIS A9910 I/O Relay Expansion Module is an Axis access control solution built to improve secure entry workflows, dependable communication, and day-to-day operational reliability. Featuring multi-drop technology, it’s possible to connect up to 16 AXIS A9910 I/O Relay Expansion Modules to one AXIS A9210 device. 128 I/Os and 64 relays using just one PoE cable-no need for an extra network cable drop. This ensures a cost-effective installation and saves you time and effort. Plus, Modbus sensor ports let you integrate environmental sensors such as temperature and humidity sensors. It is well suited for offices, schools, healthcare sites, multifamily properties, and other facilities that need secure, consistent entry management. These details add streamlined power and network installation for real-world deployment. That balance of compatibility, reliability, and usability makes it easier to build a more secure and efficient entry experience. For professional installations, it supports smoother operation, clearer system communication, and more dependable day-to-day access management.