Intel Ethernet SFP+ Twinaxial Cable 3 meter. SFP+ Direct Attach cables offer a highly cost-effective way to connect within racks and across adjacent racks. Fully compatible with the Intel Ethernet Converged Network Adapter X520 Family ? Zinc die-cast SFF-8431 SFP+ connectors. Low cross-talk and pair-to-pair skew. Fully compliant to the latest SFP Plus MSA (multi-source agreement). Conforms to environmental standards as described in the Product Environmental Content Report1. Reduced power budget and lower port cost compared to optical solutions.