General Knoppix support for those who've read the FAQ at the Wiki
HP JG937A Flexnetwork 5130-48G PoE+ 48-Port Gigabit Network Switch
$56.99
TRENDnet TEG-S17D 16-Port Gigabit Unmanaged Network Switch
$50.00
YuanLey 28 Port Gigabit Managed Ethernet Switch, 4 Gigabit SFP Uplink Ports
$58.00
Dell N4064 48-Port 10GbE SFP+ Network Switch w/ Dual PSU
$239.99
Cisco SG300-52-Port Gigabit Managed Rack Mountable Network Switch
$44.95
TP-Link TL-SG108 8-Port 10/100/1000 Mbps Gigabit Ethernet Desktop Switch FREE SH
$14.99
NETGEAR GS108 ProSafe 8-Port GbE Unmanaged Switch w/ Power Adapter
$14.99
TP-Link TL-SG108PE 8-port Gigabit Easy Smart PoE+ Swith w/ 4-port PoE - Sealed
$49.50
Cisco WS-C3750X-48PF-S 48 Port PoE Gigabit Switch w/ C3KX-NM-10G & Dual 1100WAC
$121.88
TP-Link 24-Port Gigabit Ethernet Unmanaged Switch Desktop/Rackmount TL-SG1024D
$59.49