Intel NUC lids help to customize your existing NUC with new features. Various types of NUC lids include Intel NUC Gigabit SFP Fiber Ethernet LID, Dual Port Gigabit Ethernet NUC LID – Tiger Canyon, and Intel NUC LID with WinTV-HVR-955Q TV Tuner.
https://www.gorite.com/intel-nuc-products/intel-nuc-replaceable-lids