The JBX01148 is a premium-grade 40GBASE-CSR4 QSFP+ optical transceiver designed for high-speed data center and enterprise networking applications. This module provides 40 gigabit per second data transmission capabilities over multimode fiber infrastructure, specifically optimized for 400-meter distances using OM4 MMF cabling. Key Features & Specifications: This transceiver utilizes duplex LC/UPC fiber connectors, the industry standard for reliable connectivity. The compact QSFP+ form factor (5x4x2 inches) integrates seamlessly into existing network infrastructure. With a metal case housing and precision laser transmitter, the JBX01148 delivers consistent, high-fidelity signal transmission. Compatibility & Standards: Perfectly compatible with Dell equipment, the JBX01148 replaces OEM part numbers 407-BBSG, 407-BBSK, 407-BDFW, and 407-BDFX. The transceiver is fully qualified to IEEE 802.3ba specifications and SFF-8436 standards, ensuring seamless integration with compliant networking equipment. Safety & Compliance: Multiple safety certifications validate this module's quality: Class 1 Laser designation, TUV, UL/FDA approval (21CFR 1040.10), and full RoHS/ELV compliance per EU Directive 2002/95/EC. These certifications confirm safe operation in professional environments. Performance Range: Operating temperature flexibility from 0-70°C ensures reliable performance across seasons and climates. The 400-meter transmission distance over OM4 MMF is ideal for large data center deployments and campus network installations. Value & Support: Backed by a 90-day limited warranty and featuring free standard shipping on orders over $99, this transceiver represents excellent value. Custom brand programming is available for OEM customers. Ships from Danville, CA or Beaufort, SC for fast delivery.