Straight male-to-female extension design directly lengthens original 20Pin power wire without pin conversion; 30cm tailored length keeps internal chassis wiring neat and avoids redundant tangled cables; High-purity copper wire core brings low voltage loss, sustaining stable power supply for long-time running; Lock-in molded connectors effectively prevent loose contact and unexpected power cutoffs; Plug-and-play installation, suitable for legacy PCs, industrial control hosts and hardware refitting