Don kwamfutar tebur ko kwamfutar tafi-da-gidanka a wurin fitarwa, Nau'in C kawai abin dubawa ne, kamar harsashi, wanda aikinsa ya dogara da ka'idojin tallafi na ciki.Wasu nau'ikan musaya na C na iya caji kawai, wasu na iya watsa bayanai kawai, wasu kuma na iya gane caji, watsa bayanai, da fitowar siginar bidiyo a lokaci guda.Don nuni a ƙarshen fitarwa, daidai yake don samun nau'in ƙirar nau'in C, wanda ba daidai yake da samun ayyuka daban-daban ba.Koyaya, duk masu saka idanu waɗanda ke amfani da ƙirar nau'in C azaman wurin siyar da su na iya tallafawa shigar da siginar bidiyo da juyawa caji.