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The insulation of DJYP3V computer cable is made of polyethylene, and the sheath of DJYP3V computer cable is made of polyvinyl chloride. The color of the sheath is black. Other colors can also be produced. This should be produced according to user requirements. DJYP3V computer cable shielding is adopted. The aluminum-plastic composite tape is used as the shielding layer, and the shielding materials include round copper wire, copper tape, and aluminum tape/plastic composite tape. The shielding pair and the shielding pair have better insulation performance, and the cable length is free when there is a potential difference between the shielding pair and the shielding pair during use.