eufy splits fairly cleanly into battery cameras that mount to the house and floodlight cameras that mount to a junction box. Both are covered here, with several parts made specifically for eufy hardware rather than adapted to it.
Battery and solar cameras
Three siding clips, each with a plate shaped for a different eufy family: one for eufyCam and SoloCam models including C35, C210, S220, S330 / eufyCam 3 and S3 Pro; one for SoloCam E30, S340, Indoor Cam 2K, and the 4G LTE Cam S330; and one for the Solar Wall Light Cam S120. All are drill-free — the clip hooks over a siding course and the siding retains it. If your solar panel sits away from the camera, it needs its own compatible mount.
Floodlight cameras E30, E340 and S330
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Outside corner mount — shaped for the E30, E340, and S330, for mounting on a square 90° building corner. Three 1/2-inch NPT conduit openings with closure plugs, and four thread-forming screws that attach the camera's factory mounting plate to internal bosses.
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Soffit drop extension — for the E340 and S330, in 50, 100, 150, and 200 mm lengths, to clear an overhang or downspout.
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Angled soffit wedge — for the E340 and S330, made to order from 8° to 45° for sloped soffits. Another eufy floodlight camera may fit only if it uses the same rounded-square mounting base; no other models are confirmed, so contact us before ordering.
Also here
Universal soffit, wall, and dual mounts plus drop extensions, for eufy fixtures that use a standard 4-inch junction box with 3.5-inch screw spacing. Wall screws and anchors are not included with corner mounts, and no load rating is provided.