The JCA366 USB-C to 4-port HDMI Multi-Monitor Adapter functions as an external video card for your MacBook or personal computer. It allows you to add four additional monitors/displays through your USB-C port. This is the perfect alternative to a costly video card. With the JCA366, you can quickly install the driver with a simple USB-C plug-in. Afterward, connect your device to your monitors using HDMI cables and you have just created a new visual environment in seconds. With this multi-monitor adapter, you can extend your desktop across multiple displays, clone one screen onto another, and have individual applications displayed on each monitor. You can also enable additional features with the Multi-Monitor Assistant Application for your Windows devices.