DH-CS4218-16ET-135 , Type Managed , Switch layer L2 , Web-based management Yes , 18xBasic switching RJ-45 Ethernet ports quantity , Basic switching RJ-45 Ethernet ports type Gigabit Ethernet (10/100/1000) , 2xSFP module slots quantity , Switching capacity 7.2 Gbit/s , Forwarding rate 5.36 Mpps , Rack mounting Yes , Product colour Black , Power source AC , Power supply included Yes , Power over Ethernet (PoE) Yes , Power over Ethernet (PoE) power per port 30 W , Total Power over Ethernet (PoE) budget 135 W , Width 220 mm , Depth 440 mm , Height 44 mm , Weight 2230 g