Show room availability outside shared meeting areas with a dedicated hall sign mounted at the ceiling. The Crestron SSC-102-EL-USB KIT combines a room availability sign configuration with a ceiling-mount format, positioning the sign where approaching visitors can identify the space and view its availability indication before entering. It is intended for conference rooms and other scheduled collaboration spaces that need a visible identifier at the room approach. This kit includes a USB-C adapter, providing the specified adapter connection for the installation. Custom engraving is also included, allowing the sign to carry site-specific room identification or other requested engraved information. Those included elements distinguish this configuration from a basic room-status sign requirement: it combines the ceiling installation format, USB-C adapter, and engraved customization in one named kit. Use the ceiling-mount configuration where wall-adjacent placement is not the preferred location for a room indicator, such as room entrances with open approaches, shared corridors, or layouts where signage must be visible above the doorway area. Confirm the planned mounting location, available power and connection routing, engraving content, and room-system compatibility before installation. The product serves as a room availability hall sign rather than a general-purpose display or conferencing endpoint.