The JBX01213 40GBASE-LM4 QSFP+ transceiver module is engineered for high-capacity, long-distance fiber optic networking in demanding data center and enterprise environments. This versatile transceiver combines performance, reliability, and compatibility to deliver exceptional value for network infrastructure investments. **Technical Specifications & Performance** Operating at 40GB data rates, this module supports transmission distances up to 150 meters over OM4 multimode fiber (backward compatible with OM3). The transceiver utilizes 9/125 singlemode fiber technology with precision laser transmitters housed in a robust metal case. It maintains stable performance across extended operating temperatures from 0 to 70°C (32 to 158°F), ensuring consistent connectivity in diverse facility environments. **Connectivity & Compatibility** Designed with industry-standard Duplex LC/UPC fiber connectors, this module provides secure, low-loss connections essential for high-speed data transmission. It is fully compatible with Dell infrastructure (replacing OEM parts 407-BBRB and 407-BBRC) and supports IEEE 802.3ba specifications. Custom brand programming is available for organizations requiring specialized configurations. **Safety, Compliance & Quality** This transceiver exceeds international safety and environmental standards. It carries Class 1 laser certification, TUV approval, UL/FDA compliance, and adheres to EU directive 2002/95/EC (RoHS). The metal construction with laser transmitter provides durability for continuous operation in professional settings. **Value & Support** Backed by a 90-day limited warranty, the JBX01213 represents a cost-effective solution for network upgrades. We offer free standard shipping on orders exceeding $99, with fulfillment from Danville, CA and Beaufort, SC locations. This module is manufactured in Vietnam and China to meet global quality standards. **Ideal Applications** Perfect for data center interconnects, enterprise backbone networks, high-speed campus connections, and network equipment upgrades requiring reliable 40GB transmission.