I-Heat sink sisixhobo sokuchitha ubushushu kwizinto ze-elektroniki ezithandwa ngubushushu kwizixhobo zombane, ubukhulu becala zenziwe ngobhedu, ubhedu okanye ubhedu ngendlela yepleyiti, icwecwe, iziqwenga ezininzi, njl. njl., njengeyunithi ye-CPU Ikhompyuter isebenzise isinki esikhulu sobushushu, ityhubhu yonikezelo lwamandla, ityhubhu yomgca kumabonwakude, ityhubhu yeamplifier kwi-amplifier kufuneka isebenzise isinki yobushushu.