General Knoppix support for those who've read the FAQ at the Wiki
Cisco SG95-16 16-Port Gigabit Switch SG95-16-KR
$47.00
Cisco (SG100D-05-UK) 5-Ports External Ethernet Switch
$40.00
HP Procurve 2824 24 Gigabit Ports 10/100/1000 External Managed Switch J4903A
$74.99
8 Ports Unmanaged Industrial Ethernet Switch Network Gigabit Ethernet Switch
$76.50
HP 2530-48G 48 Port Gigabit Ethernet Network Switch J9775A
$30.95
New Linksys SE3005 5-port Gigabit Ethernet Switch
$18.99
Linksys SE3008 8 Ports Rack Mountable Gigabit Ethernet Switch
$21.99
HP ProCurve 2530-24G J9776A 24 Port Gigabit Ethernet Managed Network Switch
$34.99
Netgear Prosafe Plus JGS524PE 24 Port Gigabit Switch 12 Port PoE JGS524PE-100NAS
$129.98
HP JG937A Flexnetwork 5130-48G PoE+ 48-Port Gigabit Network Switch
$65.95