Amazon.com: MokerLink 8 Port PoE Switch with 2 Gigabit Uplink, 802.3af/at PoE+ 100Mbps, 120W Built-in Power, Extend to 250Meter, Metal Plug & Play : Electronics
Cisco Catalyst 3850 Series and Cisco Catalyst 3650 Series Switches Best Practices Guide - Uplink Interface Connectivity [Cisco Catalyst 3850 Series Switches] - Cisco