Broad compatibility: Fits four screens up to 24 inches diagonal and 31 pounds each; compatible with VESA patterns 75x75mm and 100x100mm Compact design: Includes 28-inch pole, base, two paraview poles, four sliding monitor brackets and cable management hardware; install displays with 4-degree inward, outward, upward or downward off-set to optimize viewing Ergonomic comfort: Supports four monitors positioned in a quad formation; customize how you tackle each project with 360 degrees of rotation to view monitors in portrait or landscape mode Instant upgrade: Keep monitors steady from one low-profile, stable base that frees up more workspace; creates a neat work area with cable management; modular design is easy to customize with accessories Durable by design: Extensive quality testing ensures your monitors stay stable and secure; Ergotron products set the standard for quality with a 5-year warranty and expert technical support