Extio 2 SM Upgrade Kit -- One pair of single mode transceivers (used with OS1 or OS2 fiber optic cable, sold separately) to achieve up to 1km distance.

Extio 2 SM Upgrade Kit -- One pair of single mode transceivers (used with OS1 or OS2 fiber optic cable, sold separately) to achieve up to 1km distance.

XTO2-2SMTXF$592.91