The listing, Asus GX1008B Switch Power Saving has ended.
Link for details on this device
http://www.bhphotovideo.com/c/product/767146-REG/ASUS_GX1008B_8_Port_10_100Mbps_Desktop_Ethernet.html
The GX1008B 8-Port 10/100Mbps Desktop Switch with Green Network from Asus is a networking tool that's as affordable as it is easy to use. This switch features eight Fast Ethernet ports for connecting computers or other Ethernet-enabled devices on your LAN network. Of these ports, one, the "VIP" port, allows you to prioritize more important or latency-sensitive traffic for applications like VoIP or gaming. As a power-saving feature, it will put specific ports into standby mode if a computer connected to that port is turned off. Because the switch is also fanless, it operates quietly in the background. If you need a bargain of a switch for your home or small office network, check out this one from Asus.
This unmanaged switch features eight Fast Ethernet ports that can transfer data at a maximum rate of up to 100Mbps in Half-Duplex mode and 200Mbps in Full-Duplex mode
If you connect a computer up to the "VIP" port, it will prioritize more important or latency-sensitive traffic for applications like VoIP or gaming
As a power-saving feature, the switch will automatically put specific ports in standby mode if a computer connected to that port is turned off