Connection module and server having the same

A server comprising:

• a motherboard;
• an electric terminal located on the motherboard;
• and
• a connection module comprising:
• a backplane located above the motherboard and comprising a connector, the connector being configured to connect to the electric terminal;
• a first positioning member located on the backplane;
• a second positioning member located on the motherboard, the second positioning member defining a guide slot for receiving the first positioning member;
• and
• a pushing member rotatably located on the backplane, and the pushing member being configured to switch between a first state and a second state when the pushing member rotates relative to the backplane;
• wherein when the pushing member is in the first state, the first positioning member is inserted into the guide slot to assemble the backplane to the motherboard, when the pushing member is switched from the first state to the second state, the pushing member drives the first positioning member to push the second positioning member, thereby moving the motherboard away from the backplane;
• wherein the first positioning member comprises a first positioning column and a second positioning column, the first positioning column defines a guide hole extending through two opposite surfaces of the backplane, the second positioning column is configured to slide in the guide hole, and the pushing member is located on a surface of the backplane away from the second positioning member;
• the second positioning column comprises a first end close to the pushing member and a second end away from the pushing member;
• when the pushing member is in the first state, the first positioning column is inserted into the guide slot, a bottom surface of the guide slot supports the second end, and the first end protrudes from the guide hole;
• when the pushing member is switched from the first state to the second state, the pushing member pushes the first end, causing the second end to protrude from the guide hole and to push the second positioning member.