Features: Experience seamlessly long distances communication with our 1.25G SFP Singlemode Transceiver, capable of supporting up to 20km transmission, ideal for WAN and MAN applications. Feature a high bandwidth performances of up to 1Gbps, this transceiver ensures reliable data transfer with low signal attenuation, thanks to its single mode fiber design. Perfect for networking engineers, IT administrators, and service provider who require stable and efficient networking infrastructure management. Ideal for use in data centers, enterprise networking, and campus networking, providing high speeded connection between buildings or remote monitoring systems. With a wide operating temperature ranges and excellent electromagnetic compatibility, this transceiver offers robusts performances even in complex environment. Specifications: Component:Metal Size: Approx.7.8cm/3.07inch Transmission rate: 1.25Gb/s Transmission distance: 10km for single mode Receiving sensitivity: single mode 10km Long distances transmission: support the transmission distance of up to 20 kilometers. Package Includes: 1pcs 1.25Gbps Singlemode note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.