Power supply unit with latch

A power supply unit assembly, comprising:

• a bracket comprising a bottom plate, and two side plates respectively extending up from opposite sides of the bottom plate, a latching slot defined in one of the side plates adjacent to an end;
• and
• a power supply unit received in the bracket, and comprising a sidewall defining a through slot aligning with the latching slot, an end wall perpendicularly connected to an end of the sidewall adjacent to the through slot, a resilient latch connected to an inner surface of the sidewall at a first end of the latch, and a block pivotably connected to a second end of the latch opposite to the first end, wherein a stop plate extends outward from the end wall adjacent to the sidewall, the block is extended out of the end wall between the stop plate and the sidewall, a latching portion protrudes outward from the latch to extend through the through slot of the sidewall and engage in the latching slot of the bracket, the block comprises a first side, when the block is rotated, the first side of the block is capable of engaging with the stop plate, to prevent the latch from moving away from the sidewall such that the latching portion cannot withdraw from the latching slot.