Dimensions: Approx. 6.3(W) x 4.17(H) inches / 160(W) x 106(H) mm Communication: TCP/IP Software Supported Database: Access & SQL Power Input: DC 12V Power Consumption: Less than 100mA Input Format: Wiegand 26-40-bit (125KHz or 13.56MHz card reader protocol) Number of pieces: 2 uni Door Control: 1 Door/2 Door/4 Door Open & Close Time Extension: Setting: 1 to 600 seconds (Adjustable) Maximum Number of Controllers: Unlimited (Note: N supports qty or 485 hubport qty, 256 ports) Number of Users: 20,000 User Number of Event Buffers (Offline) Event Buffer Medium Max Distance: Reader to Controller: 100m/328ft (recommended distance 80m/262ft) Location: PCB board, case, power supply, serial port communication line, software, manual, certificate, key(2pcs) carton alarm, long door opening, illegal entry, dark fire and alarm link Age: If there is no connection to the expansion board, only software interface alarm can drive computer speaker. When connected to the expansion board, the hardware can be alarmed. Connect to the reinforced expansion board for security alarm. Remote distance open door: Yes Interlock: Yes Anti-passback and Tail: Yes Multi-card Open Door: Yes Long time Open for Specified Time: Yes Emergency Lock: Yes First Card Unlock: Yes Lock based on internal and external validation: Yes Keypad (Card+Password, Supper Password): Yes