100% CISCO QSFP-H40G-ACU10M COMPATIBLE: Works with Cisco switches like Firepower, ASR1000, ASR9000, C9300, C3650 and others TECHNICAL SPECS: 10m (32.8ft) 40 Gbps Active Twinax (Copper) 2 x QSFP+ Pluggable Connector 100 Ohm Impedance 24 AWG Wire Gauge PVC Cable Jacket Hot swappable MSA Compliant TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches WORKS WITH MSA COMPLIANT SWITCHES: Low power 40GbE DAC also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules and transceivers