The j5create JCA366 USB-C to 4-Port HDMI Multi-Monitor Adapter works as an external video card, letting a laptop or desktop with a USB-C port drive up to four extra HDMI displays. Each display runs at up to 1920 x 1080 at 60 Hz, and you can extend your desktop across the screens, mirror one onto another, or put a different application on each monitor, with rotation of 0, 90, 180 and 270 degrees. It is a cheaper alternative to adding a graphics card for trading desks, control rooms, reception displays and productivity setups. The adapter is bus-powered over USB-C (3.1 Gen 1), drawing up to 900 mA, so no external power supply is needed. It has an aluminium housing, an attached 50 cm cable and weighs about 158 g. A driver is required on Windows 10 or later and macOS 10.14 or later; Windows users also get the Multi-Monitor Assistant app. In the box: the JCA366 adapter and a quick installation guide. After comparing online prices, www.marvel.co.za should be the cheapest on this product.