The JBX01138 40GBASE-SR2 QSFP+ transceiver represents a cutting-edge solution for organizations requiring high-speed optical connectivity in data centers, campus networks, and enterprise environments. Delivering 40 gigabits per second over multimode fiber, this module is specifically engineered to maximize performance across OM4 fiber infrastructure with an impressive 150-meter transmission range. **Key Technical Features:** This QSFP+ module utilizes duplex LC/UPC connectors, the industry standard for multimode applications, ensuring seamless compatibility with existing network installations. The transceiver operates reliably across a wide temperature range of 0-70°C, making it suitable for diverse deployment scenarios from air-conditioned data centers to warm closets. With compact dimensions of 5x4x2 inches, it fits standard QSFP+ form factors across all major networking platforms. **Reliability and Compliance:** Designed to IEEE 802.3ba specifications, this optical transceiver meets rigorous performance benchmarks. Comprehensive safety certifications including Class 1 Laser compliance, FDA 21CFR 1040.10, UL, and TUV approval demonstrate adherence to international safety standards. RoHS and ELV compliance ensures environmentally responsible manufacturing aligned with EU Directive 2002/95/EC. **Cost-Effective Performance:** As a direct replacement for Cisco QSFP-40G-SR-BD modules (part numbers QSFP-40G-SR-BD and MA-QSFP-40G-SR-BD), this transceiver provides superior value without compromising quality. Custom brand programming is available for OEM applications, offering flexibility for enterprise deployments. **Warranty and Support:** Backed by a 90-day limited warranty, this module reflects our commitment to quality. Ships from convenient US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, ensuring rapid deployment. **Ideal Applications:** Perfect for enterprises upgrading to 40GB Ethernet infrastructure, data center interconnects, and high-performance computing environments requiring reliable multimode fiber connectivity without premium pricing.