Server License (includes license USB connector) with support (allows updates and remote technical support, with additional developments that involve engineering NOT INCLUDED) for 1 year. Includes 5 Clients with support for unlimited Clients sold separately. Also supports Mercury™ (LENEL™, HONEYWELL™, Open Options™, Red Cloud™, etc...), AXIS™ A1001, HID® VertX™/EDGE™, ACP® inBIO™ and GE™ CASI-RUSCO™ M5 hardware for unlimited doors sold separately. UnityIS™ Profesional is the perfect solution for midsize to large sites requiring access control.