General Knoppix support for those who've read the FAQ at the Wiki
Cisco SFP-10/25G-CSR-S 10/25GBASE-CSR SFP28, 850nm, 100m, LC,
$54.00
Cisco SFP-10G-LR-S 10GBASE-LR SFP+, 1310nm, 10km, LC, SMF
$27.00
Cisco SG110 24 Port Gigabit Ethernet Switch w/ 2 x SFP SG110-24
$117.00
Cisco SFP-25G-SR-S 25GBASE-SR SFP28, 850nm, 100m, LC, MMF
$54.00
NEW FS SFP-10G-T 10GBASE T SFP+ 30M Transceiver Module (Lot of 1)
$39.95
LOT OF 20 Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module
$89.00
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
Brand New Cisco GLC-LH-SMD 1000BASE-LX/LH SFP Module 1310nm 10km SMF LC
$13.89
New Cisco w/ Green Hologram SFP-25G-SR-S 25G SFP28 SR 850nm 300m LC MMF Module
$69.99
New Cisco w/ Green Hologram SFP-10G-LR-S 10G SFP+ LR 1310nm 10km SMF LC Module
$34.99