COMPATIBLE ONLY WITH Surface Pro 7. Juiced Systems is the original accessory maker for the entire Microsoft Surface product line. We have been custom building accessories to support the Microsoft Surface ecosystem since the original Surface Pro was released. Questions and inquiries are fully supported. Adapter comes with a 1 year warranty. Designed in Orange County California. 4K HDMI: Utilize the full capabilities of your Surface Pro 7 with the only adapter that can support 4K @ 60hz refresh rate