Kramer Electronics Comutador USB-C/HDMI DA3-28-H

The Kramer Electronics DA3-28-H is a professional USB-C/HDMI switcher that allows seamless switching between two video sources (USB-C and HDMI) to a single HDMI display. Ideal for conference rooms, classrooms, and AV installations, it supports 4K@60Hz resolution with 4:4:4 chroma subsampling and HDCP 2.3 compliance. The switcher features auto-sensing and manual switching modes, plus RS-232 and contact closure control for integration into larger systems. It also provides USB-C Power Delivery up to 60W for charging connected laptops, and USB 2.0 data passthrough for peripherals.

Advantages

• Seamless switching between USB-C and HDMI sources
• Supports 4K@60Hz (4:4:4) for stunning video quality
• HDCP 2.3 compliant for protected content
• USB-C Power Delivery up to 60W charges laptops
• Multiple control options: auto, manual, RS-232, contact closure
• EDID management for optimal display compatibility
• Compact DigiTOOLS® design for easy mounting

Suitable for

• Conference rooms and meeting spaces
• Classrooms and lecture halls
• Digital signage and AV installations
• Home theater systems

Key specifications

• Inputs: 1x USB-C (Video, Audio, Data, PD), 1x HDMI (Video, Audio)
• Output: 1x HDMI (Video, Audio)
• Max Resolution: 4K@60Hz (4:4:4)
• HDMI Data Rate: 18 Gbps
• USB-C Data Rate: 10 Gbps (DisplayPort Alt Mode)
• HDCP: 2.3
• USB-C Power Delivery: Up to 60W (PD 3.0)
• Audio: Embedded HDMI, Analog Stereo De-embedding
• Switching Modes: Auto-sensing, Manual, RS-232, Contact Closure
• EDID Management: Selectable
• USB Data Passthrough: USB 2.0
• Control Ports: 1x RS-232 (3-pin terminal block), 1x Contact Closure (3-pin terminal block)
• Power Supply: 12V DC, 2A (External Adapter)
• Enclosure: Compact DigiTOOLS®
• Mounting: Rack mountable with optional RK-T2B adapter

Recommendations

For optimal performance, use high-quality HDMI and USB-C cables. The DA3-28-H is an excellent choice for professional AV environments requiring reliable source switching and laptop charging.