The JBX01797 10GBASE-ER SFP+ transceiver represents cutting-edge optical networking technology designed for demanding enterprise applications requiring high-speed, long-distance data transmission. This professional-grade module delivers 10 Gigabits per second performance over single-mode fiber distances reaching 40 kilometers, significantly extending network reach while maintaining signal integrity. Technical Specifications: The transceiver utilizes 1550nm wavelength transmission, the industry standard for extended-reach applications, combined with 9/125 single-mode fiber specifications. Its duplex LC/UPC connectors provide standard compatibility with existing network infrastructure, while the SFP+ form factor enables hot-swappable installation in compatible equipment. Operating temperatures range from 0°C to 70°C, accommodating diverse deployment environments from climate-controlled data centers to outdoor network nodes. Performance & Compatibility: Fully IEEE 802.3ae qualified and SFF-8431/SFF-8472 standards-compliant, this module integrates seamlessly with Extreme Networks equipment and systems supporting the 10GBASE-ER standard. Direct replacement capability for OEM part numbers 10G-SFP-ER, 10309, 10GB-ER-SFPP, and AA1403013-E6 ensures straightforward upgrades without configuration modifications. Safety & Compliance: Class 1 Laser certification, UL/FDA approval per 21CFR 1040.10, and TUV validation guarantee safe operation. RoHS and ELV directive compliance (EU 2002/95/EC) address environmental regulations and hazardous substance restrictions. Applications: Ideal for campus network interconnects, metropolitan area networks, disaster recovery links, and long-distance data center replication. The 40km reach eliminates intermediate repeater requirements, reducing infrastructure costs and complexity. Metal case construction with integrated laser transmitter ensures durability in demanding network environments. With free standard shipping on orders over $99 and a 90-day limited warranty, this transceiver offers exceptional value for organizations requiring reliable long-distance 10 Gbps optical connectivity.