4' to 6' Drop/24" Adjuster/ 0 Connectors. Compatible with all mounts and ceiling adapters using standard 1.5" NPT interface. Unobstructed internal cord routing with 1"x2" outlet opening fits standard VGA connectors. Easily adjust drop length in 1" increments without disassembly. Connectors (sold separately) give ability to extend drop lengths by connecting two or more columns.