Xbox
In short: Game console series by Microsoft: Xbox (2001), Xbox 360 (2005), Xbox One (2013) and Xbox Series X and S (2020).
In more detail: The first Xbox was based on PC technology and had a built-in hard disk. Games came on DVD, and from Xbox One and Series X also on Blu-ray. The Series S has no drive and plays digital games only.
In Depth
Games and media
Xbox and Xbox 360 games are ordinary discs with a case and booklet. For used games, the condition of the disc, whether the booklet is included and the version (e.g. “Platinum Hits”, “Classics”) matter. Xbox 360 games run on newer consoles only if they are on the list of backward-compatible titles.
Regions
Xbox games are mostly region-free; individual titles differ in language or age rating. The USK label on the case shows the age rating.
Accessories
Controllers, memory units and cables are common second-hand. Clean the contacts and check controllers for stick drift.
See also: PlayStation, Game consoles