Cex is an American musical project run by Rjyan Claybrook Kidwell and started in 1998 at the age of 16. Although Cex and Kidwell are frequently used interchangeably, Cex occasionally expands to several people at sporadic points, such as particular tours or albums. In the past it has included Kidwell's musical associates, friends, touring partners, or high school bandmates.
CeX Ltd. is a second hand goods chain based in the United Kingdom specialising in technology, computing and video games. It was established in 1992 in London, and has since grown to have more than 320 stores in the UK. CeX used to go under the name Computer Exchange but switched to CeX. CeX stands for Complete Entertainment Exchange.