Abstract: A ground point fixing device for a power supply module includes an engaging part and a fastening part. The engaging part includes an engaging body, a joining portion and an engaging portion. The engagement body has a body outer diameter and a body surface larger than a grounding hole on a power supply module circuit board. The joining portion is disposed on the body surface and has a joining portion outer diameter smaller than the grounding hole. The engagement portion is disposed on the body surface and around an outer circumference of the joining portion. The joining portion is passed through the grounding hole to be connected to the fastening part, so that the engagement portion of the engaging part is engaged in the grounding hole, and the fastening part and the engagement body of the engaging part are respectively fixed on an upper surface and a lower surface of the circuit board.

Abstract: A power supply system has a housing and a front panel. The housing has multiple power supply slots disposed on a rear of the housing for mounting multiple power supplies respectively. The front panel has multiple peak portions and multiple valley portions arranged alternately to form a multi-dimensional space. Each peak portion has a first inclined wall for mounting multiple terminal holders, and has a second inclined wall for forming a heat dissipating structure. Electric power is input into the server power supply system via the terminal holder and is transformed and transmitted to the power supplies. With the terminal holders and the heat dissipating structures disposed on the peak portions of the front panel, space of the front of the housing can be utilize efficiently and heat dissipating efficiency to the server power supply system is also improved.

Abstract: A case has a base and a bolt assembly. The base has a distal sidewall with a mounting hole and a proximal sidewall with a large hole and a small hole. The small hole communicates with the large hole. The bolt assembly has a bolt. The bolt has a proximal end, a distal end and a stopping flange. The proximal end protrudes into the large hole via the mounting hole and is engaged with the small hole. The distal end protrudes into the mounting hole and has a knob abutting an outer surface of the distal sidewall. The stopping flange is annular and protrudes around the bolt. The knob and the stopping flange allow the bolt to connect securely with the base. The case can be assembled and disassembled quickly and easily without using any tool, which saves time and lowers cost.