https://community.extremenetworks.com/t5/extremeswitching-eos/can-dac-cables-and-optical-fibers-coexist-in-the-same-stack/m-p/122586#M2660 <P>I currently have 4 Extreme switches 7520-48Y-8C-AC-F. Two of them are in one cabinet, and the other two are in another cabinet which is 1 kilometer away. I need to stack these four switches. I have configured two 100G-DACP-QSFPZ5M direct copper cables and four 100G-FR-QSFP2KM optical modules. Could this solution be feasible? Can the DAC straight cable and the optical fiber coexist in the same stack?</P> Tue, 15 Sep 2026 01:50:37 GMT Aaron_wang 2026-09-15T01:50:37Z https://community.extremenetworks.com/t5/extremeswitching-eos/can-dac-cables-and-optical-fibers-coexist-in-the-same-stack/m-p/122586#M2660 <P>I currently have 4 Extreme switches 7520-48Y-8C-AC-F. Two of them are in one cabinet, and the other two are in another cabinet which is 1 kilometer away. I need to stack these four switches. I have configured two 100G-DACP-QSFPZ5M direct copper cables and four 100G-FR-QSFP2KM optical modules. Could this solution be feasible? Can the DAC straight cable and the optical fiber coexist in the same stack?</P> Tue, 15 Sep 2026 01:50:37 GMT https://community.extremenetworks.com/t5/extremeswitching-eos/can-dac-cables-and-optical-fibers-coexist-in-the-same-stack/m-p/122586#M2660 Aaron_wang 2026-09-15T01:50:37Z