This is the Razer Huntsman Elite, a 100% full-sized, wired mechanical gaming keyboard that retailed for $200, and still goes for around $100 on Ebay. Mine did get a lot of use, but I took great care of it, and confirmed that every switch, button, and light is fully functional.
You get Razer's very tactile Opto-Mechanical switches, per-key RGB lighting, plenty of programmable buttons and software customization, and a magnetically attached foam wrist rest (with its own RGB lighting).