General Knoppix support for those who've read the FAQ at the Wiki
Cisco Catalyst C9300-24UX-A 24 Port 10G/mGig UPOE Network Switch + NM-8X Module
$579.97
Cisco WS-C2960X-48FPD-L 48 V07 POE+ GE+2 10G SFP+, LAN BASE 740W w/ C2960X-Stack
$99.95
Cisco Catalyst C9300-24UX-A 24 Port 10G/mGig Copper UPOE Network Switch
$549.00
Cisco Nexus N9K-C93108TC-EX 48-Port 10G RJ-45 6x100G QSFP Network Switch W/Ears
$499.99
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$30.99
Cisco C3850-NM-4-10G 4 Port Network Exp.Module for 3850
$134.90
CISCO SFP-10G-LR SFP TRANSCEIVER MODULE GBIC 10G 10GB SFP - 1 Year Warranty
$39.99
Cisco WS-C2960S-F48LPS-L 2960S Series 48 Port Gigabit Switch, 1 Year Warranty
$27.50
Cisco Catalyst WS-C2960X-24PD-L GigE PoE 370W, 2 x 10G SFP+, LAN Base w/C2960X-S
$114.00
Cisco C3560CX-12PD-S 16 Port Compact Switch, 12x PoE Ports, 4x Uplinks, 2x10Gb
$499.99