The Peplink ACW-882 is an L-mount kit for the Peplink Mobility 42G and Antenna Max, two of Peplink's high-density combination antennas. Both antennas are designed around a base-mount installation on a horizontal surface — a vehicle roof or equipment deck. The ACW-882's L-shaped bracket geometry adapts that base to vertical surfaces, so the antenna can hang off a wall, pole bracket, or cabinet side while its cellular, Wi-Fi, and GNSS elements stay oriented the way the RF design expects. That orientation detail is the reason to use the manufacturer's mount rather than a fabricated angle bracket. Combination domes like the Mobility 42G integrate many radiating elements in one housing; tilting the housing off its intended axis changes patterns and GNSS sky view. The L-mount preserves correct orientation while opening up mounting locations that a flat deck mount cannot reach. The kit is matched to the bolt pattern and cable exit of the Mobility 42G and Antenna Max, keeping the install clean and the cable bundle protected where it leaves the antenna base. At a listed 0.44 lb shipping weight, it adds little to a site kit. For fixed installations of Peplink routers — MAX BR series, Balance with cellular, or MAX HD2/HD4 units paired with these antennas — the ACW-882 turns a vehicle-style antenna into a practical building-mount solution under a single Peplink accessory part number.