Server chassis and server

A server, comprising:

• a housing, comprising a bottom plate, a first side plate and a second side plate together forming an accommodation space, wherein the first side plate and the second side plate are respectively connected to two opposite sides of the bottom plate, and the first side plate has a top side;
• a substrate assembly, disposed in the accommodation space;
• an expansion assembly, comprising an assembling bracket and a circuit board assembly, wherein the circuit board assembly is disposed on the assembling bracket and electrically connected to the substrate assembly;
• and
• at least one mounting assembly, each of the mounting assembly comprising:
• a fixed bracket, fixed to the first side plate;
• and
• a mounting bracket configured for the expansion assembly to be mounted thereon, wherein the mounting bracket movably disposed on the fixed bracket along a height direction of the housing;
• wherein each of the at least one mounting assembly further comprises at least one elastic component, and two opposite ends of the at least one elastic component are respectively fixed to the fixed bracket and the mounting bracket.