The ACTpro-1520 is a single door IP Controller with 2A 12V DC PSU and includes a dual-port Ethernet switch. The ACTpro-1520 controller supports 60,000 users, 2,000 User groups, door station technoogy (ACTpro-100 and ACTpro-120) and wireless locks and is ideal for a single door or for systems that need to grow to thousands of doors.