4 PACK Dual LC Single-Mode Fiber Module; Fiber Type:1.25Gb/s Wavelength: 1310-nm; Reach: up to 20KM Meters; with Advanced DDM Function to monitor real-time parameter and state on fiber links. SFP MSA Compliant, IEEE 802.3z compliant. | Low Power Consumption: The power consumption is only less than 1watt, that can save costs wisely. GESD will always provides innovative and cost-effective optical networking solutions. Each sfp module is individually done test before packing. | Widely Used in fiber switches, routers, NIC, server or other fiber optic equipments with 1Gb SFP ports.★Compatible with Cisco GLC-LH-SMD/GLC-LH-SM/SFP-GE-L, Meraki MA-SFP-1GB-LX10, Ubiquiti UF-SM-1G, Mikrotik, Fortinet, TP-Link,TL-SM311LS,D-Link. | Plug and Play & Durable: Hot-swappable, Rotate the ring latch down at 90 degree angle to unlock, then pulling transceiver out from switch. Less than 1.05W power dissipation and heat-conducting gasket provide superior heat dissipation function. | If you are not sure about the compatibility of your device, please feel free to contact us for customized SKU to meet your needs(We offer many compatible options). ★After-sales Service:30-day free return,3-year warranty,lifetime technology support.We produce high quality transceivers,every transceiver has been tested for 28 steps before shipping.