The JBX01711 10GBASE-BX20-D SFP+ transceiver is a high-performance optical module designed for enterprise networking applications requiring robust 10Gigabit Ethernet connectivity over extended distances. This transceiver is fully compatible with Cisco's SFP-10G-BX-D20 specification, making it an ideal replacement or upgrade solution for existing network deployments. **Key Features:** The module utilizes bidirectional WDM technology to enable simultaneous transmission and reception over a single simplex fiber strand, significantly reducing fiber infrastructure costs. Operating at 10Gbps data rates, it supports IEEE 802.3ae standards compliance with qualified performance metrics. The simplex LC/UPC connector provides reliable fiber coupling with minimal signal loss. **Technical Specifications:** Designed for 20km transmission distances over 9/125 singlemode fiber (SMF), this transceiver excels in metropolitan and campus network environments. The compact SFP+ form factor (5x4x2 dimensions) integrates seamlessly into standard network equipment. Operating temperature range spans 0-70°C (32-158°F), ensuring stable performance across diverse deployment environments. **Safety & Compliance:** Fully certified as Class 1 Laser equipment with TUV, UL, and FDA approvals (21CFR 1040.10 compliant). RoHS/ELV directive compliance ensures environmentally responsible manufacturing. All safety certifications meet rigorous international standards. **Applications & Use Cases:** Ideal for data center interconnections, metropolitan area networks (MANs), long-distance campus networks, and enterprise backbone infrastructure. The module excels in scenarios requiring cost-effective extended-reach connections without extensive fiber infrastructure investments. **Product Advantages:** Direct Cisco compatibility eliminates integration concerns. Custom brand programming availability supports OEM and private-label applications. Free standard shipping on qualifying orders plus 90-day limited warranty provides customer peace of mind. Ships from strategically located U.S. facilities (Danville, CA and Beaufort, SC) for faster delivery.