(1) Fahimtar

　　USB Nau'in A shine mafi yawan amfani da ke dubawa kuma ana amfani dashi a cikin kwamfutocin PC. Hanyoyin sadarwa suna ba ka damar haɗa na'urori daga linzamin kwamfuta, madannai, kebul na USB, da ƙari zuwa kwamfutarka. Type-A Interface ya kasu kashi A-type USB plug da A-type USB soket nau'i biyu, gabaɗaya ana kiran mu da namiji da mace. Gabaɗaya akan layi shine tashar jiragen ruwa na namiji (tologin), injin shine tashar tashar uwar (socket). Bakin jama'a da na uwa mukan yi amfani da M, F na nufin, A/M na nufin A-nau'in kai namiji, A/F na nufin uwar nau'in A.

　　( 2) Amfanin USB Type A

　　1, na iya zama mai zafi-swappable. Yana ba mai amfani damar toshe kebul na USB lokacin amfani da na'urar waje, kai tsaye akan PC.

　　2, mai sauƙin ɗauka. Na'urorin USB galibi "kananan, haske, sirara" kuma suna da rabin haske kamar na'urorin IDE idan aka kwatanta da 20G hard drives.

　　3.Standard uniformity. Za'a iya haɗa abubuwan da ke gefen aikace-aikacen zuwa PC ta amfani da ma'auni iri ɗaya, kamar na'urorin USB, berayen USB, firintocin USB, da sauransu.

　　4, na iya haɗa na'urori da yawa. USB sau da yawa yana da musaya masu yawa akan PC wanda zai iya haɗa na'urori da yawa a lokaci guda. Idan kun haɗa HUB USB tare da tashoshin jiragen ruwa 4, zaku iya haɗa wasu na'urorin USB 4.