GrenTech 10G SFP+ 40km’s transmitter uses a cooling 1550nm EML laser, and receiver uses a PIN laser. The power consumption is less than 1.5W, with ultra-low EMI and excellent ESD protection, mainly uses in 10GBASE-ER/EW, 10GBASE-ER/EW + FEC, 10G Storage system, LTE optical repeater application and so on. Contact GrenTech for more 10g er info!