Vivolink VLHUB221 USB graphics adapter

The Vivolink VLHUB221 USB graphics adapter is a compact 2x1 HDMI presentation switcher and USB3.0 hub designed for meeting rooms and conference setups. It accepts two HDMI or USB‑C/DisplayPort Alt Mode inputs and outputs a single HDMI signal while also functioning as a USB hub for conference peripherals. The device supports video resolutions up to 4Kx2K@60Hz 4:4:4 8bit, 1080p and 3D, offers EDID configuration via a front 4‑pin DIP switch, and provides balanced analog audio de‑embedding in addition to embedded HDMI audio.

Advantages

The VLHUB221 combines HDMI switching and USB hub functionality in one unit, enabling easy source selection and centralized connection for cameras, microphones and HID devices. It supports high‑quality 4K@60Hz video and multichannel audio, provides device extension through a USB type‑B host port and two type‑A ports for peripherals, and offers multiple control options including automatic switching, front‑panel buttons, RS‑232 commands and CEC control of the display. EDID selection via DIP switch helps ensure compatibility with various displays.

Suitable for

• Small and medium meeting rooms with one display and multiple source devices
• Conference setups that require connecting USB cameras, microphones or keyboards
• Presentation environments needing high‑resolution HDMI output (up to 4K@60Hz)

Key specifications

• Model: Vivolink VLHUB221
• Inputs: 2× HDMI and USB‑C/DisplayPort Alt Mode compatible input
• Output: 1× HDMI (supports up to 4Kx2K@60Hz 4:4:4 8bit, 1080p, 3D)
• USB: 1× USB Type‑B (host), 2× USB Type‑A (HID/peripherals)
• Audio: HDMI embedded audio and balanced analog audio de‑embedded output
• Control: AUTO switching, front‑panel buttons, RS‑232 commands, CEC support
• EDID: Selectable via 4‑pin DIP switch on front panel
• Brand/MPN/EAN: VivoLink / VLHUB221 / 5715063221211

How to use

Connect source devices to the HDMI or USB‑C inputs that support DisplayPort Alt Mode or DisplayLink. Connect the HDMI output to the display and attach USB peripherals (camera, microphone, keyboard) to the Type‑A ports. Use the Type‑B USB port to connect the unit to a host computer if required for USB device passthrough. Configure EDID using the front 4‑pin DIP switch to match the display capabilities. Choose the control mode: set AUTO for automatic source detection, or use the front buttons or RS‑232/CEC commands for manual control.

Recommendations

For reliable 4K@60Hz performance use high‑quality HDMI 2.0 cables and ensure source devices support DP Alt Mode or DisplayLink as applicable; set EDID to match the display’s native resolution and color settings to avoid scaling or compatibility issues.