Isokhethi yaphansi yohlobo lwe-pop-up wuhlobo lwendawo kagesi noma isokhethi efakwa phansi futhi ingafihlwa uma ingasetshenziswa. Iklanyelwe ukunikeza amandla kanye nezinketho zokuxhuma ezindaweni ezihlukahlukene ezifana namahhovisi, amagumbi enkomfa, izindawo zomphakathi, noma izindawo zokuhlala lapho kunesidingo somthombo wamandla ohlakaniphile futhi ofinyeleleka kalula.
Isici esiyinhloko sesokhethi yaphansi yohlobo lwe-pop-up yikhono layo "lokuvela" noma ukuphakama ukusuka ezingeni laphansi lapho kudingeka bese lihlehla libuyele phansi lapho lingasetshenziswa. Lokhu kuvumela ukubukeka okuhlanzekile nokungaxutshwe nalutho lapho isokhethi ingasetshenziswa, njengoba ihlala iguquguquka nendawo ephansi.
Amasokhethi aphansi e-pop-up ngokuvamile anezindawo eziningi zokuphuma kwamandla futhi angase afake izimbobo ezengeziwe zedatha, i-USB, noma uxhumano lomsindo/lwevidiyo, kuye ngemodeli ethile nezimfuneko. Zivame ukuza nesivalo noma ipuleti lekhava elingavulwa noma livalwe ukuvikela amasokhethi futhi linikeze indawo engenamthungo lapho ivaliwe.
Sekukonke, amasokhethi aphansi ohlobo lwe-pop-up anikeza isixazululo esilula nesithandekayo sokufinyelela amandla nokuxhumana kuyilapho kugcinwa indawo ehlanzekile nehlanzekile lapho ingasetshenziswa.