An assembly includes a stationary furniture part, a furniture part movable relative to the stationary furniture part, a guide device for guiding the movable furniture part relative to the stationary furniture part, and an electric drive device for moving the movable furniture part relative to the stationary furniture part. The guide device includes a body rail on the stationary furniture part, and a drawer rail on the movable furniture part. The drawer rail includes a first interface for fixing an ejection device and/or a retracting device to the drawer rail. The body rail includes a second interface for fixing a driver for the ejection device and/or the retracting device to the body rail. The electric drive device can be arranged on the second interface, and a gear rack can be arranged on the first interface to transmit a force from the electric drive device to the drawer rail.

An electric slide rail (100) comprising: a track system (110); a power assembly (120); and a transmission system; wherein the track system (110) comprises an upper rail (111), a middle rail (112), and a lower rail (113) arranged from top to bottom, the power assembly (120) is fixed to the lower rail (113), the transmission system is fixed to the middle rail (112), and the electric slide rail (100) is configured such that the power assembly (120) provides power to move the track system (110) via the transmission system.