Extreme Networks 10311 passive direct attach copper (DAC) cable provides 0.5m connectivity between QSFP+ ports operating at 40 Gbps. This short-reach interconnect eliminates the need for transceivers and delivers full line-rate throughput with minimal latency, making it ideal for high-density switch-to-switch, switch-to-server, and intra-datacenter connections. Compatible with Extreme Networks fabric and data center switches supporting 40G QSFP+ interfaces, as well as third-party equipment with standard QSFP+ ports. The compact length suits confined rack and cabinet environments where space is limited. Typical deployments include Top-of-Rack (ToR) to aggregation switch fabrics, server cluster interconnects, and storage area networks requiring cost-effective, low-power cabling solutions.Tested and guaranteed fully functional. Available via quote from G5 Network Group.