The Apollo ASP Series Intelligent Door Controller is a cutting-edge access control solution from Apollo Security it comes in two variants, the ASP-4 ( four door controller) and ASP-2 (two door controller), designed for high-performance and scalability. It supports up to one million cardholders and processes over 10,000 events in under one second. Featuring a powerful processor with embedded Apollo software, it offers seamless integration with both Wiegand and OSDP readers, along with built-in input/output capabilities. Ideal for enterprise environments, the ASP Series delivers speed, reliability, and advanced functionality in a single robust device.