Dahua NVR21-S2 SERIES

58
Model
22-4KS2 Series
22-P-4KS2 Series
22-8P-4KS2 Series
eSATA Port
N/A
RS232 Port
N/A
RS485 Port
N/A
USB Port
2 peripheral USB2.0 ports.
HDMI Port
1
Network
Connection
1 RJ45 10/100Mbps self-adaptive Ethernet
port.
1 RJ45
10/100/1000Mbps
self-adaptive
Ethernet port.
PoE
N/A
4
8
Power Button
One at the rear panel.
Power On-off
Button
N/A
IR Receiver
Window
N/A
Clock
Built-in real-time clock.
Indicator Light
One power status indicator light.
One network status indicator light.
One HDD status indicator light.
General
Power
Supplying
DC12V 4A
DC48V 1.5A
DC53V 2.2A
Power
Consumption
＜10W (No HDD, no PoE connection)
Working
Temperature
﹣10℃～﹢50℃
Working
Humidity
10℅～90℅