DS-K2704X(P) 4-Door Access Controller Main Board - Expandable to 128 Doors Default:- car park and critical‑infrastructure outdoor

car park and critical‑infrastructure outdoor monitoring where 4K resolution

Large radio range (open space) and pet immunity keep nuisance alarms low when installed correctly

Quad-beam design with AND gating to reduce false alarms

Ideal for residential

DS-K2704X(P) 4-Door Access Controller Main Board - Expandable to 128 Doors Default:- car park and critical‑infrastructure outdoorDS K2704X(P) 4 door access controller main board (expandable) Enterprise grade Ultra series 4 door access controller main board with downstream RS485 expansion to control up to 128 doors (via DSK2M002X modules). Supports OSDP over RS485 and Wiegand readers, web based configuration, and advanced access functions such as antipassback and multidoor interlocking. Large capacity: up to 100,000 users, 200,000 cards, 10,000 fingerprint templates and 600,000