General Knoppix support for those who've read the FAQ at the Wiki
New Precision DWDM SFP+ 10G 80km Tunable Transceiver 50GHz C-Temp DWDM-SFP10G-C
$90.00
Lot (10) Dell 0N8TDR 850nm SFP-10G-SR-85C 10Gbs sfp+ FTLX8574D3BNL-FC N8TDR NEW
$68.00
Green Label Hologram SFP-10G-T-X 10GBASE-TSFP+ Transceiver Module RJ45 30m
$69.00
New Sealed Cisco GLC-LH-SMD 1000BASE-LX/LH SFP Transceiver Module *US Shipping*
$9.50
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
IPOLEX ASF-10G-T 10GBase-T 10GbE SFP+ to RJ-45 Copper Optical Transceiver Module
$35.99
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
10 PCS Cisco GLC-LH-SMD 10-2625-01 1310nm SFP Transceiver Module
$85.00
Cisco WS-C2960X-48FPD-L 48 V07 POE+ GE+2 10G SFP+, LAN BASE 740W w/ C2960X-Stack
$140.00