Ko tētahi o ngā painga o tēnei atanga ko te tauwhitiwhiti e 2 ngā kāri PCI ki a rāua anō me te kore haere ki te pūtukatuka.

Ko te whakaritenga o tēnei pahi i tuatahi nā Intel i te 90. I whakaputaina te putanga 1.0 i te 22 o June, 92, ā, ko te putanga 2.0 i te 30 o April, 93. Ko ngā rā whakatinanatanga tuatahi e hoki ana ki te 94 i runga i ngā papamā pūtukatuka Intel 80486. Mai i reira, ka tere te whakakapi te pahi PCI i ērā atu pahi, pēnei i te pahi ISA.
I tukua te arotakenga 2.1, tae atu ki ngā tauwhāititanga mō ngā pahi MHz 66, i te 95.

Mai i taua wā, ko te kunenga o ngā tohutohu o te pahi PCI, tae atu ki ērā o te pahi AGP me te PCI Express e whakahaeretia ana e tētahi rōpū huamoni, te Rōpū Hua Moni Motuhake PCI (PCI-SIG), tuwhera ki ngā kaiwhakanao.

Mai i te 2004, mō ngā pūrere tere (pēnei i ngā kāri whakairoiro), ka whakahōutia te pahi PCI (me te AGP) e tētahi putanga iti ake, tere ake hoki : te PCI Express.

PCI 2.34 ka puta mai i ngā putanga e rua :
- Pahi moka-32 i 33 MHz (i.e. he aratuku mōrahi o te 133 MP/s) (te mea hāereere rawa);
- bus 64 bits à 66 MHz (soit une bande passante maxi de 528 Mo/s), utilisé sur certaines cartes mères professionnelles ou sur des serveurs (elles font deux fois la longueur du PCI 2.2 à bus 32 bits) ;

PCI-X : pahi moka-64 i 133 MHz (he aratuku mōrahi o te 1066 MP/s), i whakamahia i roto i ngā mihini ngaio;
PCI-X 2.0 : 266 MHz (he aratuku mōrahi o te 2133 MP/s);
PCI Express : He arowhānui e pā mai ana i te PCI hei whakakapi ki ngā rorohiko whaiaro. Ahakoa i whakakapi i te pahi AGP (engari ko te PCI), te PCI Express Kāore i te wātea ki te mono-mai kāri ataata anake.
PCI Iti : i tīkina mai i te PCI 2.2 e hiahia ana kia tāpiritia ki ngā rorohiko pona.
I tōna putanga māmā PCI ka tiria te hōkaiipurangi i waenga i ngā huānga tūhono katoa i runga i te pahi, kāore e pērā ki ngā mea e pā ana ki te putanga PCI Express i te wāhi e whakatapua ana mō ia pūrere. Nō reira, he pai ake te whakamahi i ngā kāri tere-tiketike i te wā kotahi (kāri whatunga gigabit, pūmana kōpae, kāri whakairoiro).

Pērā ki ngā pūtukatuka, ka whakaae ētahi papamāriki i te huri nui o te pahi PCI i te 33 MHz, whakanuia ake te auautanga o te pahi tae atu ki te 37.5 MHz, tae atu rānei ki te 41.5 MHz. Ahakoa te ine mahora mai i te paerewa, he maha ngā kāri PCI e mahi tika tonu ana (kia tere ake rānei) i ēnei auautanga.

Ko te tikanga kei runga i ngā papamā ngā kāniwha PCI, ā, he 3, 4 neke atu rānei. Ka tino mōhiotia ia e tō rātou tae (pūnoa).

E wātea ana te atanga PCI mā te moka-32, me tētahi tūhono 124-pin, he moka-64 rānei me tētahi tūhono 188-pin.
E rua hoki nga taumata waitohu :

- 3.3 V : e hiahiatia ana mō ngā rorohiko pona
- 5 V : e hiahiatia ana mō ngā rorohiko papamahi

Kāore te ngaohiko tūtohu i te ōrite ki ngā ngaohiko o te papa, engari ki ngā paepae ngaohiko mō te whakawaehere mamati o te mōhiohio.

Ka tāpae ngā kāniwha PCI moka 64-moka i ētahi pini anō, engari ka taea tonu te pupuri i ngā kāri PCI moka-32. E 2 ngā momo tūhono moka-64 :
- Kāniwha PCI moka-64, 5 V
- Kāniwha PCI moka-64, 3.3 V