Abstract: There is provided a multi-channeled flat tube that includes a flat outer tube and a plurality of partitions that divide the inside of the outer tube into a plurality of channels. Each partition in the multi-channeled flat tube has a mountain-shaped cross-sectional form composed of two sides, each of the two sides has a thickness ti and a length a, the partitions are disposed so that a face-to-face distance between adjacent partitions along inner surfaces of the outer tube is Li, and a thickness to of the outer tube satisfies a condition below. By selecting an appropriate pressure when expanding the multi-channeled flat tube, it is possible to prevent deformation of the tube outer surface into a wavy or undulating pattern Li · ti · a 2 - ti 2 3 ? a ? to .

Abstract: An interface cable connection is used for connecting between electronic appliances, particularly appliances associated with a computer. The connection includes a hood covering the connector. The connection is useful for preventing accidental electric shocks, filtering undesirable electromagnetic waves and facilitating connecting interface cables.