Abstract: A computer frame has a body and multiple support assemblies. The body has a housing and multiple mounting legs and may accommodate a fan. The housing has a sidewall. The mounting legs are attached to and protrude down from the sidewall. The support assemblies are attached to and hold the body to allow a computer to be mounted under the body. Therefore, the computer frame allows efficient air circulation and makes maintaining a computer system mounted in the computer frame easy.

Abstract: A hard disk drive case has a base, a cover and a fan assembly. The base has an inner surface, a sidewall and an outlet formed through the sidewall of the base. The cover is mounted onto the base and has an inlet formed through the cover. The fan assembly is mounted on the inner surface of the base, is surrounded by the sidewall of the base and has a bracket and a hood. The bracket has an airway and a fan. The airway is flared and communicates with the outlet. The fan is mounted in the airway. The hood corresponds to and covers the airway to form a chamber communicating with the outlet and has a hole defined through the hood, corresponding to the fan and allowing the fan to extract air from the inlet and to guide air toward the outlet efficiently.

Abstract: A cooling fan with a light-emitting device has a frame, multiple light-emitting diodes (LEDs), a circuit board, a stator, permanent magnets and an impeller. The permanent magnets are formed around the inside-perimeter of the casing of the impeller. The impeller is rotated by the interaction force between the poles of the electro-magnetized stator and the poles of the permanent magnets in the impeller. The rotational speed of the impeller is controlled by the drive circuitry on the circuit board. Each LED projects light towards the impeller and to the frame so the light will reflects and bounces all over the fan to produce a fantastic visual effect. The LEDs can be made to twinkle based on the rotational speed of the fan to increase the visual attractiveness.