RGB extension cable horizontal flow lamp (Enfield EN1)

RGB (not RGM) Extension Cable - I can’t amend the heading) I think it’s one of these flashing lights for PC gamers. It came with a video board for a PC that I bought on eBay. On the box it says “2 x 8 pin extension cable for GPU/PCIE”. It says it’s a lighting ARGB extension cable 5v 3 pin connectors support ARGB sync”