TP-Link 5 Port Gigabit Desktop Network Ethernet Switch TL-SG1005D SPECIFICATIONS Interface: 5 10/100/1000Mbps RJ45 Ports AUTO Negotiation/AUTO MDI/MDIX Fan Quantity: Fanless External Power Supply: External Power Adapter (Output: 9VDC / 0.6A) Dimensions: 5.5*3.5*0.9 in. (140*88*23 mm) Max Power Consumption: 2.41W(220V/50Hz) Transfer Method: Store and Forward MAC Address Table: 4K Advanced Functions: Green Technology, saving power up to 80%