First up is the StartTech TB32DP2 ThunderBolt3.0 to Dual DisplayPort adapter.
5K 27" Dell monitor (UP2715K).
At $66.86, It's not cheap - but if you need it, buy it.
The second item is the Sonnet Fusion ThunderBolt 3 PCIe Flash drive (Windows Edition) (model # FUS-TB3-512GB-W).
The third item is from Sonnet's competitor, OWC, which has a similar product - the Envoy Pro EX with Thunderbolt 3. It's now been updated for 2018 and the VE models are capable of 2.6GB/s read speed. The heatsink fins on the sides of the case are ment to keep it cool. The 1TB model recorded on Amazon priced at $699.99.
Another interesting storage from OWC is the Mercury Viper with ThunderBolt 3. Internally, it has 4x SSD units (not sure if mSATA or 2242 M.2) in RAID, and it is powered via a wall outlet. It reaches scorching speeds of up to 2GB/s writes, and up to 2.3GB/s reads. It's got a flat profile and a nice light strip around the case for that futuristic look. Unknown yet when will be released and what would be the pricing on these.
The last item is the Akitio Thunder3 Duo Pro enclosure, which can accommodate a couple of 3.5"/2.5" HDDs or SSDs. It features a Hardware RAID controller (RAID0/1/Span/JBoD) and tool-less drive installation.
Great option if you need to expand the Skull Canyon NUC's storage capacity with something that won't handicap the internal M.2 drive(s). Recorded on Amazon priced at $223.79 ✈.