Specifications: 1) Operating temperature: -40 ~ +85°C 2) Appearance: 1 x 9 style 3) RoHs 4) MQW FP structure or DFB laser or CWDM 5) Simplex/duplex SC or ST or FC connector 6) Single + 5V or +3.3V supply / PECL or LVPECL interface 7) Class 1 laser safety compliance 8) Conductive plastic or metal packages 9) Wave solder process compatible 10) Full compliant with ITU-T G.957/8 specification 11) 155M, 52M, 622M, 1.25G available