The GE 19" Wall Channel (#411959-001) is used to mount the GE DASH, B40, B105, or B125 Patient Monitors to a wall for stability and ease of use.
GE Dash 3000/4000/5000 Patient Monitor Service Manual
GE B40 Patient Monitor Brochure
GE B105 Patient Monitor Brochure
GE B125 Patient Monitor Brochure