The Ubiquiti UISP UFiber GPON OLT SFP Module C+ is a Class C+ GPON Optical Line Terminal (OLT) transceiver designed for use in UFiber OLT devices. It supports single-mode fiber connections with an SC/UPC connector and operates at asymmetric speeds of 2.5 Gbps downstream and 1.25 Gbps upstream over a distance of up to 20 km. The Class C+ module offers a higher power budget compared to Class B+.   

Supported Media: Single-Mode Fiber   
Connector Type: (1) SC/UPC
TX Wavelength: 1490 nm
RX Wavelength: 1310 nm
TX Power Range: 3 to 7 dBm
RX Power Range: -30 to -12 dBm   
Downstream Data Rate: 2.5 Gbps
Upstream Data Rate: 1.25 Gbps
Cable Distance: 20 km