This monitor works 100Hz HDMI and DisplayPort but requires a high quality USB-C cable. Lenovo/Thinkpad or other high quality USB-C cable did 100Hz. Basic cable only 60. I am including HDMI, power and DisplayPort cable. Didn’t see any dead pixels.

The Pixio PX275C Prime 27" monitor is a high-performance display designed for serious gaming, casual computing, and light gaming. With a sleek design and features like a bezel-less display, built-in speakers, and fully adjustable stand, this monitor offers a great viewing experience. The IPS LED technology ensures vibrant colors and wide viewing angles, while the 2560 x 1440 resolution provides sharp and detailed visuals. The monitor also supports multiple video inputs, including DisplayPort, HDMI, and USB-C, making it versatile for various devices. At 65W, it provides a high level of power delivery for charging purposes. With a manufacturer warranty of 1 year, the Pixio PX275C Prime is a reliable choice for professionals and gamers alike.