http://privexioc67u24lsmssoeixnml2exr3les4pbtyqtmv3zvonvcc72jyd.onion/articles/suggested-switches-routers-colo
| ComputerHope 5-port switch (TP-Link TL-SG105S) A small 5-port switch: The TP-Link TL-SG105S is 4" wide, 4" deep, and about 1" tall. 19" / 4" = 4.75 switches, rounded down this means we can fit 4 of this switch model per row. While for the depth, we need to take into account there needs to be padding between the rows, so that there's space to both plug in ethernet cables in the front of each switch, and the power cables in the back of each switch. 2" should be enough, so 4 + 2 = 6 inches...