General Knoppix support for those who've read the FAQ at the Wiki
Lot (10) Dell 0N8TDR 850nm SFP-10G-SR-85C 10Gbs sfp+ FTLX8574D3BNL-FC N8TDR NEW
$68.00
New Precision DWDM SFP+ 10G 80km Tunable Transceiver 50GHz C-Temp DWDM-SFP10G-C
$90.00
New Cisco SFP-10G-LRM 10G SFP+ LRM 1310nm 220m SMF/MMF LC Module
$34.99
New Cisco SFP-10G-LR 10-2457-02 10GBASE-LR 10GBASE-LW TRASNCEIVER W/HOLO
$59.00
ProLabs 10GBase-TX SFP+ RJ-45 Copper Transceiver Module P/N: SFP-10GBASE-T-C NEW
$34.99
CISCO SFP-10G-LR SFP TRANSCEIVER MODULE GBIC 10G 10GB SFP - 1 Year Warranty
$39.99
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
$10.99
Finisar 10Gb 10km SMF LR SSR, SFP+ 1310nm 10Gbase-LR FTLX1471D3BNL -EQ
$15.99
CISCO Original SFP-10G-LR 10-2457-02 1310nm 10km Fiber Optic Transceiver Module
$17.08