Feature:1. FLEXIBLE VGA CONNECTION: This VGA switcher allows multiple PCs, laptops to share one VGA monitor or projector for seamless display transfer.2. COMPATIBLE WITH COMMON DISPLAYS: Ensure your monitor doesn't require for DDC protocol to achieve 1920 x 1440 resolution. Check technical specs before purchase.3. VERSATILE USAGE: Share one monitor, projector among multiple computers, making it ideal for presentations, classrooms, control centers, remote monitoring, and training facilities.4. DURABLE DESIGN: Full metal shielded casing with easy to use buttons; automatically detects and displays DDC information without the need for external power.5. MULTI PURPOSE APPLICATION: This VGA switcher box is perfect for security settings that require switching between multiple inputs for monitoring different areas, suitable for various environments like presentations, classrooms, and control centers.Specification:Item Type: 4 Port VGA SwitchMaterial: MetalColor: BlackOutput Interface: VGAInput Interface: VGA x 4Resolution Support: 1920 x 1440Application: for PC, TV, Monitor.Package List:1 x VGA Switcher