The JBX02174 1000BASE-BX40-D SFP Transceiver represents professional-grade optical networking technology designed for organizations requiring extended-reach fiber connectivity. This simplex LC/UPC transceiver achieves 40km transmission distances over standard 9/125 single mode fiber, making it ideal for campus networks, data center interconnects, and long-distance WAN deployments. **Key Technical Features:** Operating at 1490/1310nm wavelengths, this bidirectional transceiver qualifies to SFF-8472 specifications and extends beyond standard IEEE 802.3ah requirements. The module supports 1Gbps data rates with exceptional reliability across the 0-70°C operating temperature range. Its metal case construction houses precision laser transmitter components rated for Class 1 laser safety, ensuring compliance with UL/FDA and TUV certifications. **Compatibility & Integration:** As a direct Fortinet FG-TRAN-BX40-D compatible replacement, this transceiver integrates seamlessly into existing Fortinet infrastructure without compatibility concerns. Custom brand programming is available for systems integrators and OEM applications requiring white-label solutions. **Standards & Compliance:** Fully RoHS/ELV compliant per EU directive 2002/95/EC, this transceiver meets strict environmental and safety standards. Its comprehensive certifications (Class 1 Laser, LN #50 7/2001, TUV, UL/FDA per 21CFR 1040.10) provide confidence in mission-critical deployments. **Specifications & Dimensions:** Compact form factor (5 x 4 x 2 inches) accommodates standard SFP module slots. The simplex LC/UPC connector provides reliable connections with minimal signal loss. Manufactured in Vietnam and China using quality-controlled processes, each unit includes a 90-day limited warranty. **Use Cases:** Perfect for network administrators expanding coverage to remote locations, campus interconnects, or replacing failed OEM transceivers. Free standard shipping on orders exceeding $99 makes this an economical solution for bulk deployments.