Amaphampu e-peripheral wokuzifaka ngamadivayisi akhethekile aklanyelwe ukuhambisa uketshezi ngokuphumelelayo ezinhlelweni ezahlukahlukene zezimboni. Esinye sezici eziphawuleka kakhulu zalezi zimpompo yikhono lazo lokuzimela, okusho ukuthi bangasusa umoya kulayini wokusungula bese beqala ukumpompa uketshezi ngaphandle kokudinga i-priming yesandla. Lesi sici sibenza babe wusizo ikakhulukazi ezimweni lapho impompu