The ENET SFC2-QLZY-5M-ENC 10GBASE-CU 5 meters (16.4 ft) SFP+ Direct-Attach Cable (DAC) is specifically programmed to be fully compatibility and seamlessly connect Qlogic devices to Zyxel devices. Every Cross-compatible and OEM compatible Direct-Attach Cable (DAC) product is individually programmed and tested in-house for guaranteed functionality and seamless integration. Our test lab utilizes the latest network switches, servers and routers for compatibility testing as well as industry leading traffic simulation equipment for functionality testing. ENET offers more than 1,000 10G and 40G cross-compatible and OEM compatible direct-attach cable solutions.Qlogic to Zyxel Compatible 10GBASE-CU SFP+ Direct-Attach Cable (DAC) Passive 5M (16.4 ft) 100% Tested Lifetime Warranty Guaranteed Compatible