It checks in with 16GB of RAM and a blazing-fast 512GB solid-state drive ... which is perfect for 1080p gaming and can also handle some 2K gaming at a lower refresh range and graphical settings.
A 1TB solid-state drive is standard, as is a 4K UHD Blu-Ray optical drive. The Series X outputs up to 8K video and ships with a 4th-generation Xbox wireless controller and an UltraHDMI cable.