The JBX01202 40GBASE-ER4 QSFP+ transceiver represents a robust solution for enterprise-grade, extended-range optical networking. Designed to meet the demanding requirements of modern data centers and telecommunications infrastructure, this module delivers exceptional performance and reliability. **Technical Specifications:** The JBX01202 operates at 40GB data rates over singlemode fiber (SMF) at distances reaching 40 kilometers. The module utilizes a 9/125 micron singlemode fiber core, ensuring minimal signal degradation and superior transmission quality over extended distances. The duplex LC/UPC fiber connectors provide secure, low-loss connections with industry-standard push-pull reliability. **Form Factor & Compatibility:** This QSFP+ transceiver is engineered for drop-in compatibility with Dell 407-BBVI systems, making it an excellent replacement solution for existing deployments. The compact form factor (5x4x2 inches) fits seamlessly into standard QSFP+ slot configurations without requiring chassis modifications. **Safety & Compliance:** The transceiver incorporates a metal case with integrated laser transmitter technology and meets stringent safety requirements including Class 1 laser certification, TUV approval, UL compliance, and FDA 21CFR 1040.10 standards. The module is fully RoHS and ELV directive compliant (EU directive 2002/95/EC), making it suitable for environmentally conscious organizations. **Performance & Reliability:** Qualified to IEEE 802.3ba and SFF-8436 standards, the JBX01202 provides dependable operation across industrial temperature ranges (0-70°C). The Forward Error Correction (FEC) capability enhances signal integrity over long-distance links, reducing bit error rates and improving overall network stability. **Applications:** Ideal for enterprise data center interconnects, metropolitan area networks (MANs), telecommunications backbones, and long-distance campus connectivity. Supports high-bandwidth applications including video streaming, cloud services, and large data transfers. **Warranty & Support:** Backed by a 90-day limited warranty with free standard shipping on orders exceeding $99. Custom brand programming is available upon request. Ships from multiple US locations ensuring faster delivery times. The JBX01202 represents a cost-effective, standards-compliant solution for organizations seeking reliable 40GB extended-range connectivity.