The JBX01251 40GBASE-PLRL4 QSFP+ Transceiver represents a premium solution for organizations requiring high-speed, cost-effective optical connectivity. Specifically designed for 40GB Ethernet implementations, this transceiver excels in delivering consistent performance over singlemode fiber distances up to 1.4 kilometers. **Technical Specifications:** Operating at 1310nm wavelength, the transceiver utilizes 9/125 singlemode fiber technology to achieve optimal signal integrity and minimal dispersion. The MTP/MPO-12/APC connector configuration ensures superior optical coupling efficiency and reduced insertion loss. With IEEE 802.3ba qualification and SFF-8436 compliance, this module meets the highest industry standards for optical transceiver performance. **Key Features & Benefits:** The integrated metal case with laser transmitter technology provides excellent electromagnetic shielding and thermal management. Operating temperature range of 0-70°C accommodates both standard and challenging deployment environments. The transceiver is fully compatible with Fortinet FG-TRAN-QSFP+PLR systems, making it an ideal replacement for OEM components while offering superior value. RoHS and ELV compliance demonstrate commitment to environmental responsibility, while Class 1 laser safety certification and TUV/UL/FDA approvals ensure workplace safety compliance. The compact 5x4x2 dimensional profile integrates seamlessly into high-density switch deployments without requiring additional modifications. **Applications & Use Cases:** Ideal for data center upgrades, campus network interconnections, and enterprise backbone implementations where reliable 40GB connectivity is essential. The 1.4km distance capability covers most intra-building and campus-scale deployments efficiently. Perfect for organizations standardizing on Fortinet infrastructure seeking compatible, certified optical modules. **Quality & Support:** Manufactured in Vietnam and China under strict quality controls, each unit is tested for compliance and performance. The 90-day limited warranty protects your investment, while custom brand programming options accommodate enterprise requirements. Free standard shipping on orders exceeding $99 from our Danville, CA and Beaufort, SC warehouses ensures rapid deployment.