The JBX02421 25GBASE-LR SFP28 transceiver represents a cutting-edge solution for modern data center and enterprise networking environments requiring high-speed, long-distance fiber connectivity. Designed to deliver consistent 25Gbps performance, this optical transceiver utilizes 1310nm wavelength technology to achieve reliable transmission over 10 kilometers of single-mode fiber infrastructure. **Key Technical Features:** This module features industry-standard duplex LC/UPC connectors optimized for minimal insertion loss and maximum signal integrity. The 9/125 single-mode fiber core ensures superior signal quality for extended transmission distances. The compact SFP28 form factor (5mm x 4mm x 2mm) fits seamlessly into dense port configurations, enabling space-efficient network deployments. With a metal case construction incorporating precision laser transmitter components, the transceiver delivers robust performance in demanding environments. **Performance & Compatibility:** Fully compatible with Fortinet FN-TRAN-SFP28-LR networking equipment, this transceiver provides a cost-effective upgrade path for existing infrastructure. It meets IEEE 802.3by and SFF-8402/SFF-8472 specifications, ensuring interoperability across vendor ecosystems. The module operates reliably between 0-70°C, supporting diverse deployment scenarios from climate-controlled data centers to industrial environments. **Safety & Compliance:** This transceiver meets stringent international safety and environmental standards, including RoHS/ELV directive compliance, Class 1 Laser certification, and UL/FDA approval per 21CFR 1040.10. TUV certification further validates its safety and quality standards. **Use Cases:** Ideal for data center interconnects, campus backbone upgrades, content delivery networks, and high-frequency trading environments requiring deterministic low-latency connectivity. The 10km reach supports metropolitan area networks and distributed campus architectures without requiring intermediate regeneration. **Warranty & Support:** Backed by a 90-day limited warranty, with custom brand programming available for white-label applications. Ships from multiple US locations with free standard shipping on orders exceeding $99.