First, I am the first user and the device was purchased in 2021, as shown in the warranty. For sale: Sony 4 Pro in excellent condition. The device is very clean and was only used for a month when I bought it during Corona. It has never been serviced or opened. It works efficiently and has no problems. Wireless controller - DualShock 4, 4K display compatibility - Yes, 8GB GDDR5 RAM, USB - SuperSpeed USB (USB 3.1 Gen 1) Port x 3 Key Features ヘ • A product featuring powerful graphics and speed, deeply integrated social capabilities, connected games, smart customization, and innovative second-screen features. • All PS4 Slim and Light systems include a 1TB hard drive for all your favorite games, TV shows, and music. • Blu-ray technology provides exceptional video quality. • Supports faster frame rates and delivers ultra-fast action. • Precisely designed to enhance user comfort during long-term use.