YuanLey Unmanaged 7 port 2.5G switch 5x2.5Gbps Ethernet/RJ45 2xSFP+ 10Gbps
SFP+ ports can be used to link the switches together using an SFP cable or SFP module with decent ethernet cable (I used Cat7 cable and a couple of H!fiber modules which worked great.). Few marks on the rear due to wall mounting.