Apple makes wall-mounted HomeView buyers source their own power supply

The first sign of a wrong adapter is on the screen. MacRumors reports that an underpowered HomeView shows "Power Adapter Not Supported", with a lightning bolt and a yellow warning triangle ^[14]. 9to5Mac gives the message as "Not Enough Power" and says Apple's support article walks through that one ^[15][10].

Apple's suggested first step for a wall unit is to test it outside the mount, using a compatible USB-C cable and adapter ^[7]. If it works when connected directly, Apple tells customers to contact the mount manufacturer or their professional installer ^[7].

The power spec has two parts, and a purchase has to meet both. Apple asks for at least 20W and for support for 9V at 2.22A or higher ^[2]. Multiplied out, 9V at 2.22A is 19.98W ^[13]. Apple's support article links to a compatible adapter ^[9].

Money is the other half. Apple wrote in the article that the wall-mounted model "requires a compatible third-party mount and power solution for operation, sold separately" ^[8]. A 9to5Mac colleague named Ryan said: "Apple is selling two different mount options that start at $59, and it says a third is coming in early 2027." ^[16] Add the $59 starting price of Apple's mounts to the $299 pre-order price ^[11] and the wall unit comes to $358 ^[12]. The tabletop unit stays at $299 and includes its adapter and cable ^[4]. The reports do not give a price for the adapter or cable a wall buyer still has to find.

The wall-mounted version suits a buyer who has already settled the mount and the power route for each location. Anyone who has not is better off with the tabletop model, if the location allows a flat surface. The tradeoff is placement: a unit that must be on a wall has no tabletop substitute.

We'd sort each location on two facts: whether the unit has to be on a wall, and whether a named person owns the mount and the power route. No wall requirement means the tabletop unit. A wall requirement with a named owner means the wall unit, with the first delivery put through Apple's outside-the-mount test. A wall requirement with no owner means holding the order, since Apple's troubleshooting ends at the mount maker or installer ^[7] and the unit would have no one to call.