General Knoppix support for those who've read the FAQ at the Wiki
Cisco Nexus 48-Port 10G SFP+ Switch N9K-9396PX w/ 9K-M12PQ 12-Port 40G QSFP
$419.99
Cisco SG200-26 26-Port Gigabit Network Smart Switch
$76.49
HP Procurve 5412zl Network Switch
$84.99
Cisco Catalyst 3560 WS-C3560-48PS-S 48 Port Switch W/ Rack Ears
$59.99
New Linksys SE3005 5-port Gigabit Ethernet Switch
$18.99
Linksys SE3008 8 Ports Rack Mountable Gigabit Ethernet Switch
$21.99
NetGear ProSafe GS748T V4 48-Port Gigabit Smart Switch w/ Ears + Cord
$30.00
New 10/100 Mbps 8 Ports Fast Ethernet LAN Desktop RJ45 Network Switch Hub
$11.49
HP Aruba 2530-8G-PoE+ 8x PoE+ RJ45 2x SFP Gigabit Switch J9774A No AC Adapter
$37.99
Fortinet FortiSwitch FS-124D-POE 24 Port Gigabit Ethernet Switch UNREGISTERED
$99.97