RJ45 Copper SFP Supplier & Exporter serving the Hamburg market

Protocol & Hardware Standards

Our RJ45 Copper SFP modules are designed in strict accordance with the SFP Multi-Source Agreement (MSA) and IEEE standards. This ensures physical dimension compatibility and electric signaling alignment across all host equipment.

• IEEE 802.3an: Standardized physical layer specifications for 10GBASE-T Ethernet over twisted-pair copper cabling.
• IEEE 802.3ab: Standard for 1000BASE-T physical layer over 4-pair Category 5/5e/6 balanced copper cables.
• SFF-8472: Compliance interface for diagnostic monitoring (where host platform supported).
• Low Power PHY: Integrating advanced 28nm/16nm PHY chips (Broadcom/Marvell) to limit power consumption under 2.5W (for 10G 30m configurations), reducing heat dissipation inside high-density switches.

PHY Chip Architecture & Signal Integrity

The physical layer (PHY) transceiver chip is the brain of the RJ45 SFP module. It performs complex digital signal processing (DSP), including echo cancellation, line equalization, and forward error correction (FEC) to mitigate Cross-talk and signal attenuation inherent to high-frequency copper transmission.

For industrial installations in Northern Germany, where ambient electrical noise from heavy port machinery is present, our modules feature robust metal housings that provide superior shielding against Electro-Magnetic Interference (EMI) and meet Class B electromagnetic radiation limits.

China Factory Supply Chain & Global OEM Capabilities

Xelivor Optoelectronics Co., Ltd. is a specialized manufacturer based in China, engineered for the global distribution of high-reliability fiber optic and copper transceiver modules. Established in 2016, we maintain a state-of-the-art facility optimized for low-latency mass production and custom firmware programming.

Our core competitive advantage lies in our supply chain resilience. Through long-term partnerships with over 850 raw material and components suppliers, we mitigate bottleneck shortages of advanced PHY semiconductors and precision printed circuit board assemblies (PCBAs). This allows us to guarantee consistent lead times to our distributors, system integrators, and telecom operators throughout the Hamburg region and broader Germany.

Every SFP transceivers leaving our factory undergoes a rigorous double-stage compatibility check. We test compatibility against more than 80 major networking hardware brands, utilizing our extensive local testing lab populated with switches from Cisco, HPE Aruba, Ubiquiti, Juniper, Extreme Networks, and Huawei.

With over 8 years of industry experience and 6 years of export experience, Xelivor has achieved annual export revenues exceeding USD 12 million. Our products are exported to customers across North America, Europe, Southeast Asia, the Middle East, and South America, supporting a wide range of networking applications from enterprise infrastructure to hyperscale data centers.

Xelivor specializes in the design, development, and production of optical transceivers, including SFP, SFP+, SFP28, QSFP28, QSFP-DD, OSFP, DAC, and AOC solutions. Backed by a dedicated R&D team of 68 engineers, the company continuously invests in innovation and launched more than 85 new products in the past year to meet the evolving demands of high-speed optical networks.

Quality is at the core of our operations. Our quality management system incorporates incoming material inspection, in-process quality control, aging tests, compatibility verification, optical parameter testing, and final product inspection. A professional quality assurance team of 32 inspectors ensures every product meets strict international standards before shipment.

The company maintains long-term cooperation with more than 850 supply chain partners, enabling stable sourcing, efficient production, and rapid delivery capabilities. Our flexible manufacturing system supports OEM, ODM, private label, customized firmware, customized labeling, and packaging services to satisfy diverse customer requirements.