GrenTech 25G SFP28 LR is dual-fiber bi-directional LC interface, it can transmit up to 10km over single-mode fiber and compliant with SFP28 MSA and IEEE 802.3cc standard. This 25G QSFP transceiver has great performance in the industrial temperature range and widely uses in 5G mobile prequel and 25G Ethernet. Contact GrenTech for more 25g sfp28 lr info!