Amazon.com: Cable Matters 20Gbps USB C to USB C Monitor Cable 3 ft / 0.9m with 4K 120Hz & 8K 30Hz, 240W Power Delivery, USB C Video Cable/USB C Display Cable with
USB-C Power Delivery 3.1 Charging Cable
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The first 240W USB-C power meters are here - The Verge
Amazon.com: USB-C Laptop Charger Power Adapter: Lenovo Yoga Thinkpad LG Gram Razer Blade Stealth MacBook Acer Samsung Asus Dell XPS Chromebook Microsoft Universal USB C PD3 UL Listed : Electronics