Control access to up to four doors over an IP network; 30,000 card capacity and 100,000 event log capacity; Full range of supported card readers; Advanced access control functions built directly into the panel; Offers a variety of advanced communication functions; Backup your data with an onboard SD card; Functionality is not affected in the event of network interruption; Multiple hardware protection measures, including over-current protection, over-voltage protection, and reversal protection for the power supply and all terminals; Seamless integration with third-party systems; Free SDK available; UL 294 Certified