Seller claims they're new, photos appear to back the statement up.
No warranty from Dell though, these devices have been EOLed.
Btw, the link's b0rked, I changed the topic, it changes the URL too, not changing it again, but EU eBay new Dell Edge 680 16 core C3958, 32GB RAM 240GB SSD 6x1GbE 2xSFP+ ~200€ might be better.
As for used Dell Edges, you might want to use Dell Edge E42W VEP1400 620/640/680 HW discovery.