10G Copper SFP+ 80m module is a high-speed alternative to optical transceivers, utilizing twisted-pair copper cable as the transmission medium. It complis with SFF-8431 and IEEE 802.3ap/an standards, achieving 10Gbps data transmission through a standard RJ45 interface using Category 6a/7 or higher-grade shielded twisted-pair cables. Compared to traditional 10GBASE-T technology, this direct-attach copper (DAC) solution offers lower power consumption, reduced latency, and superior cost-effectiveness, making it particularly suitable for short-distance interconnections within 80 meters. 

10G Copper RJ45 SFP+ 80m transceiver key performance features

●Optimized Transmission Distance

The 80-meter transmission distance precisely covers the connection requirements within most data center cabinets and between adjacent cabinets. Compared to the 15-meter or 30-meter limitations of earlier 10GBASE-CR standards, the 80-meter version provides greater deployment flexibility, enabling cross-rack connections without requiring additional repeater devices.

●Low Power Consumption & Low Latency

Utilizing a passive or active copper cable design, its typical power consumption is only 0.5-1.5W, significantly lower than the 4-6W of 10GBASE-T modules. This energy-efficient characteristic is crucial for large-scale deployments. Furthermore, direct electrical signal transmission results in sub-microsecond latency, superior to 10GBASE-T solutions that require complex encoding and decoding.

●Excellent Signal Integrity

Leveraging advanced Digital Signal Processing (DSP) technology and equalization algorithms, the module effectively compensates for signal attenuation and interference in copper cables at high frequencies. Pre-emphasis and receiver equalization techniques ensure a clear signal eye diagram is maintained over 80 meters of Cat 6a/7 cable, meeting the Bit Error Rate (BER) requirements for 10Gbps high-speed transmission.

●Plug-and-Play & Broad Compatibility

The module typically operates without configuration and supports hot-swapping. Products from mainstream vendors offer good switch compatibility and can work seamlessly with SFP+ ports from brands such as Cisco, Juniper, Arista, and HPE.

10G Copper SFP+ 80m module technical implementation principle

The core of the 10G Copper SFP+ 80m module lies in full-duplex data transmission over the four pairs of wires within the twisted-pair cable. Each wire pair carries an effective data rate of 2.5Gbps, achieved through efficient modulation techniques like PAM16 (16-level Pulse Amplitude Modulation). The built-in DSP chip performs critical functions:

●Adaptive Equalization: Dynamically compensates for signal loss caused by cables of varying lengths and qualities.

●Crosstalk Cancellation: Reduces electromagnetic interference between wire pairs, including Near-End Crosstalk (NEXT) and Far-End Crosstalk (FEXT).

●Clock Recovery: Precisely extracts the clock signal from the data stream to ensure synchronization accuracy.

10G Copper RJ45 SFP+ 80m transceiver  typical application scenarios

Data Center Server to ToR Switch Connections

Provides a cost-effective connection between servers within a cabinet and the Top-of-Rack (ToR) switch in hyper-converged infrastructure and server clusters.

Storage Area Network (SAN) Interconnect

Connects storage arrays to servers, meeting the low-latency requirements of high-performance storage access.

Enterprise Network Backbone Interconnect

Used for medium-to-short distance 10G interconnections between wiring closets and core switches, with costs significantly lower than fiber optic solutions.

High-Performance Computing (HPC) Clusters

Offers an economical interconnection solution within racks for HPC environments requiring high-speed communication between numerous nodes.

10G Copper RJ45 SFP+ 80m transceiver deployment considerations

●Cable Quality Requirements: Must use Category 6a or Category 7 and above shielded twisted-pair cables, ensuring high-quality termination of connectors (RJ45).

●Thermal Management: Although power consumption is low, adequate airflow should be ensured in high-density deployments.

●Electromagnetic Compatibility (EMC): Avoid running cables parallel to power cables over long distances to reduce interference risks.

●Distance Verification: It is recommended to test the actual usable length of specific cables at 10G speeds before final deployment.

Application Graph