Server

A server, comprising:

• a casing having at least one assembly channel and at least one first fastening slot, the assembly channel being for providing a motion path, and the first fastening slot being located at one side of the assembly channel;
• a circuit board component disposed inside the casing and comprising a substrate and at least one first electrical connector, the first electrical connector being fixed and electrically connected to the substrate, and located at the motion path;
• an assembly component located out of the casing and detachably assembled with the casing, the assembly component having a second fastening slot located within the motion path where the first fastening slot is located, a distance along the motion path between the first electrical connector and the second fastening slot being greater than a distance along the motion path between the first electrical connector and the first fastening slot;
• and
• a power supply comprising a main body and at least one fastening unit connected to the main body, the main body comprising a second electrical connector for being combined with the first electrical connector, the main body being for movably assembled with the assembly channel of the casing, such that the fastening unit is selectively assembled with the first fastening slot or the second fastening slot, when the fastening unit is fastened with the first fastening slot, the second electrical connector is combined with the first electrical connector and maintained at a first position, and when the fastening unit is fastened with the second fastening slot, the second electrical connector is separated from the first electrical connector and maintained at a second position,
• wherein a first axial direction and a second axial direction are defined to be orthogonal, the motion path is defined to be along the first axial direction, and the assembly component is movably assembled with the casing along the second axial direction.