The JBX01225 40GBASE-LR4 QSFP+ Transceiver represents a cost-effective solution for enterprise customers seeking high-speed, long-distance optical connectivity. This module is fully compatible with Cisco QSFP-40G-LR4 specifications and serves as a direct replacement for original equipment manufacturer part numbers including QSFP-40G-LR4, QSFP-40GE-LR4, MA-QSFP-40G-LR4, and QSFP-40G-LR4-S. Key Performance Specifications: This transceiver operates at 40 gigabits per second over single-mode fiber (SMF) with a maximum transmission distance of 10 kilometers, making it ideal for metropolitan area networks and campus interconnections. The 9/125 fiber core specification ensures optimal signal integrity and compatibility with standard singlemode fiber infrastructure. Connectivity & Design: Equipped with Duplex LC/UPC connectors, the module provides secure, low-loss connections with consistent performance. The compact QSFP+ form factor (5x4x2mm) integrates seamlessly into modern network equipment while maintaining excellent thermal management through its metal case construction. Compliance & Reliability: Fully certified to IEEE 802.3ba and SFF-8436 standards, this transceiver meets stringent international safety requirements including Class 1 Laser certification, TUV, UL, and FDA compliance (21CFR 1040.10). RoHS and ELV compliance ensures environmentally responsible deployment across global networks. Operational Range: With an operating temperature range of 0-70°C (32-158°F), the transceiver performs reliably in both climate-controlled data centers and challenging field environments. The 90-day limited warranty provides peace of mind for enterprise deployments. Ideal Applications: Perfect for data center interconnections, high-speed campus networks, storage area networks (SANs), and metropolitan optical networks. Custom brand programming is available for organizations requiring OEM-specific configurations. Shipping & Support: Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, ensuring quick deployment and cost-effective procurement for network infrastructure upgrades.