UNITEK Y-6331 Mini DisplayPort to HDMI Adapter 4K@30Hz for MacBook Surface Pro Monitor Projector
The UNITEK Y-6331 Mini DisplayPort to HDMI Adapter converts Mini DisplayPort (Thunderbolt 2) signals to HDMI. It supports 4K Ultra HD resolution at 30Hz (3840x2160). It also supports 1080P and lower resolutions. This adapter is perfect for connecting older MacBooks, Microsoft Surface devices, and PCs with Mini DisplayPort to modern HDMI displays. Use it with TVs, monitors, or projectors for presentations, gaming, or home theater.
The adapter is compliant with DisplayPort 1.2 and HDMI 1.4 standards. It delivers crisp visuals and sharp details on large screens. The compact design has a fixed 20cm cable length. It is plug and play. No drivers are required. It works with Windows, macOS, and Linux. The adapter also transmits audio (HDMI carries both video and sound).
This adapter is ideal for extending or mirroring your screen. Use it in conference rooms to connect your laptop to a projector. Use it at home to watch movies from your MacBook on a big TV. It is also great for gamers using older Mini DisplayPort devices. The 4K resolution provides four times the detail of Full HD.
The adapter is built for reliability. It has gold‑plated connectors (likely on the HDMI side) to resist corrosion. The housing is durable plastic. The short 20cm cable reduces desk clutter and prevents strain on ports.
Technical Specifications
Frequently Asked Questions
1. What devices have a Mini DisplayPort? +
Devices with Mini DisplayPort include many older MacBook models (pre-2016), Microsoft Surface Pro (older models), some Lenovo ThinkPad laptops, and certain Dell workstations. It is also known as Thunderbolt 2 (compatible with Mini DisplayPort).
2. What resolutions and refresh rates are supported? +
It supports 4K at 30Hz (3840x2160@30Hz), as well as 1080P at 60Hz, 720P, etc. For 4K@60Hz, you need a DisplayPort 1.4 or higher adapter.
3. Is the adapter bi‑directional? Can I convert HDMI to Mini DisplayPort? +
No. This adapter works only from Mini DisplayPort (source) to HDMI (display). It does not work in reverse.
5. Do I need to install drivers? +
No. It is plug and play on Windows, macOS, and Linux. No drivers are required.

