The Middle Atlantic USC-K is a remote key switch wall plate designed to provide secure, controlled power access for rack-mounted equipment in professional AV, IT, and security installations. This accessory interfaces with compatible Middle Atlantic power distribution units (PDUs) or sequencers that feature a remote key switch input. By installing this wall plate at a convenient, secure location—such as at a room entrance or technician station—it allows authorized personnel to turn the entire rack's power on or off using a physical key, without needing direct access to the rack itself.

The wall plate houses a robust keyed switch mechanism and provides termination points for low-voltage wiring that runs back to the controlled PDU. This setup adds a layer of physical security and operational control, preventing unauthorized or accidental power cycling of critical systems. It is particularly valuable in classrooms, conference rooms, digital signage installations, and equipment closets where system power needs to be managed by staff but the rack is located in a locked or inaccessible area.

Constructed to match standard electrical wall plate dimensions and finishes, the USC-K provides a clean, professional appearance when installed. Its simple, reliable design fulfills a specific need in system integration: centralized and secure power control. By facilitating secure remote operation, it enhances both the safety and manageability of installed technology systems, ensuring that equipment is powered up and shut down properly by authorized users.