The JBX02323 25GBASE-CSR SFP28 transceiver represents enterprise-grade optical connectivity for modern data center networks. Engineered to IEEE 802.3by specifications and qualified to SFF standards, this multimode transceiver delivers exceptional performance and reliability. **Key Performance Features:** Operating at 850nm wavelength, the transceiver achieves 25Gbps data rates over impressive 400-meter distances on OM4 multimode fiber, making it ideal for intra-datacenter and campus network deployments. The duplex LC/UPC connection design ensures minimal signal loss and maximum reliability in high-density network environments. **Compatibility & Integration:** Fully compatible with Arista SFP-25G-MR-XSR modules, this transceiver provides seamless integration into existing network infrastructure. It's a drop-in replacement that maintains complete interoperability without requiring network reconfiguration. **Quality & Compliance:** Manufactured with precision engineering including metal case construction and advanced laser transmitter technology, the module meets rigorous international standards. RoHS/ELV directive compliance ensures environmental responsibility, while Class 1 laser certification and FDA 21CFR 1040.10 approval guarantee user safety. Additional certifications include TUV and UL validation. **Operational Reliability:** With extended operating temperature range from 0-70°C, the transceiver performs consistently across diverse deployment scenarios. The compact 5x4x2 dimension profile accommodates dense switch configurations without compromising airflow or accessibility. **Professional Support:** Includes 90-day limited warranty coverage and available custom brand programming for OEM applications. Ships from strategically located US facilities with free standard shipping on orders over $99, ensuring rapid deployment capabilities. **Applications:** Perfect for high-speed network upgrades, virtualized data centers, 25G Ethernet implementations, and enterprise campus fiber networks requiring cost-effective, standards-compliant optical connectivity.