In used/working condition. Does not include wrist rest or extra red keys, hence the price.
To control the RGB features, you'll need to install GSkill's proprietary software.
PCWorld gave it a glowing review back in 2017 - https://www.pcworld.com/article/410898/gskill-km780-review-one-of-the-best-rgb-enabled-keyboards-to-date.html
FEATURES:
Military-grade anodized brushed aluminum back-plate
Cherry MX Brown mechanical keyswitches
Fully programmable keys & per-key backlighting
Full n-key rollover & 100% anti-ghosting on USB
On-the-fly macro recording, 6 dedicated macro keys, and media control panel
USB 2.0 and stereo audio pass-through ports
Durable 2m braided USB cable