This Panasonic AG Video Switcher and Effects Generator Model WJ-4600A is a professional-grade unit suitable for live video production and editing. With twelve inputs and outputs, it offers versatile connectivity options and supports a range of media formats. The unit is rack-mountable and has a form factor suitable for installation in a production studio. The features of the Video Switcher and Effects Generator are designed to meet the highest standards of video production. It provides seamless switching between inputs and supports special effects for enhancing the output. The unit is OEM compliant and is built to offer reliable and efficient performance.

Used appears to be stained / dirty. powered on but no way to test functionality. Does NOT smell like burnt electronics
Power switch is broken / on