Abstract: The present invention provides a polycarbonate resin composition of a high light reflectance comprising the following elements. A base material is formed by mixing from 50 to 99% by weight of a polycarbonate resin and from 1 to 50% by weight of a titania (TiO2). Wherein, one hundred parts of the base material is using as a calculating base. Further, 0.5 to 50 parts by weight of a brightness improver and 0.05 to 0.5 parts by weight of a stabilizer are added to the base material. Hence, the polycarbonate resin of the present invention not only can achieve the effect of high light reflectance, but also can provide with the advantages of the property of the thermal stability and the color stability.

Abstract: An interface fastening plate adapted in a personal computer casing where predetermined interface expanding slots. A plurality of outwardly bent structure are provided along one of the lateral edges of the fastening plate as resilient positioning hooks of which are used to engage with the interface expanding slots.

Abstract: A computer casing connector comprising an electrically conductive U-shaped body, one limb of which has a plurality of snap catches to snap on one piece of a computer casing and the other limb of which has a plurality of resilient arcuate members to contact with the other piece of the computer casing when the casing is assembled so as to provide an electrical connection between the casing pieces and, thus, prevent the radiation of electromagnetic waves out of the casing.