4 Door Access Smart Controller, Board Only. Supports 4 Doors OSDP (8
Readers Entry/Exit) or 2 Doors Wiegand (4 Readers Entry/Exit) with 12
Contact Inputs and 4 Relay Outputs. With a cardholder capacity of
250,000 and access level capacity of 32,000, the acre Smart Controller
can accommodate organizations of any size.