Heat dissipation device for server and server assembly with same

The utility model discloses a heat dissipation device for a server and a server assembly with the heat dissipation device, and the heat dissipation device comprises an outer shell, a heat dissipation module, a heat dissipation module and a heat dissipation module, the inner shell is accommodated in the accommodating cavity; the inner shell is connected with the outer shell through the flexible connecting piece, and the flexible connecting piece is suitable for keeping the relative suspension state of the inner shell and the outer shell when the inner shell vibrates relative to the outer shell. According to the heat dissipation device designed by the utility model, the flexible connecting piece is suitable for keeping the relative suspension state of the inner shell and the outer shell while connecting the inner shell and the outer shell, so that the damping effect of the heat dissipation device is improved, the vibration of the server shell and the hard disk is reduced, and the read-write performance of the hard disk is improved.