Sony INZONE M9 | 4K | 144Hz | HDMI 2.1 For sale: Sony INZONE M9 monitor in excellent and clean condition, fully functional. * 4K resolution * 144Hz refresh rate * HDR * HDMI 2.1 * Fast IPS * Suitable for PC and PS5 Reason for selling: Special circumstances. Price: 2300 SAR, reasonably negotiable.