This is a custom-built PC that has been confirmed to work and can play 4K videos. I was able to play APEX and Monster Hunter Rise at 60FPS in FHD with ease. The configuration is as follows. Please check the performance of each part yourself. ※ The prices in parentheses are the recent selling prices on Mercari. ●○●○●○●○●○●○●○●○●○●○●○●○●○●○ Case: ANTEC P7 Silent (3400 yen) Power Supply: Thermaltake TOUGHPOWER GRAND RGB 1050W PS779 PS-TPG-1050F1FAPJ-1 (7000 yen) BD-RE Drive: BDR-212BK (5500 yen) SSD ①: Crucial SSD P2 Series 1TB M.2 CT1000P2SSD8JP (9500 yen) SSD ②: Silicon Power SSD 1TBSP001TBSS3A55S25 (5800 yen) M/B: MSI MPG Z390 GAMING PRO CARBON (7000 yen) CPU: INTEL Core i5-9600K (4800 yen) CPU Cooler: Scythe Kotetsu Mark II (1500 yen) Memory ①: CORSAIR CMK16GX4M2A2666C16R (2990 yen) Memory ②: SAMSUNG DDR4 8G x 1 (2000 yen) GPU: MSI Radeon RX 580 ARMOR 8G OC VD6879 (9400 yen) OS: Windows 11 Home (0 yen) Total: 58990 yen ●○●○●○●○●○●○●○●○●○●○●○●○●○●○ Cleaned with a blower. Please understand that this is amateur cleaning.