General Knoppix support for those who've read the FAQ at the Wiki
Cisco SG300-52-Port Gigabit Managed Rack Mountable Network Switch
$44.95
Fortinet FortiSwitch FS-124D-POE 24 Port Gigabit Ethernet Switch UNREGISTERED
$99.97
Cisco WS-C2960X-24TS-L 24 Port Gigabit Ethernet Network Switch 2960X
$49.99
YuanLey 18 Port Ethernet Switch,with 16 port 10/100Mpbs PoE,2 Gigabit Uplink
$40.00
Arista 7050QX 32 Port QSFP+ Dual PSU Gigabit Switch DCS-7050QX-32
$99.99
HP ProCurve 2530-48G 48 Port Gigabit Ethernet Network Switch J9775A TESTED
$30.70
Cisco SG300-10P 10x PoE RJ45 Gigabit Switch SRW2008P-K9 V03 + Power Adapter
$34.99
NETGEAR GS108 ProSafe 8-Port GbE Unmanaged Switch w/ Power Adapter
$14.99
Juniper Networks EX3300 EX3300-48P 48-Port Gigabit PoE+ Switch
$37.20
Cisco Catalyst WS-C3750G-48TS-S 48 Port Managed Gigabit Ethernet Switch 4x SFP
$47.99