AddOn QSFP-DD Module - For Data Networking, Optical Network - 1 x LC 400GBase-FR4 Network - Optical Fiber - 0.1 mil Wavelength - Single-mode - 400 Gigabit Ethernet - 400GBase-FR4 - 400 Gbit/s - 2 km Maximum Distance - 1 Pack - TAA Compliant: