Purism yakazivisa nezuro kuti yaitarisirwa kwazvo Librem Kiyi USB yekuchengetedza kiyi inowanikwa yekutenga seyekutanga uye chete OpenPGP-yakavakirwa kiyi yekupa maMusoro firmware (kambani yakasarudzika) yakabatanidzwa neiyo tamper-proof bhuti.
Yakagadziridzwa pamwe chete neNitrokey, kambani inozivikanwa nekugadzira makiyi ekuchengetedza USB aine mahara software inoita kuti zvive nyore kunyoresa uye kusaina data pamalaptop, Purism's Librem Key yakatsaurirwa kune vashandisi veLibrem laptop. Librem Key inosangana neyekuchengetedza bhutsu maitiro eLibrem 4096 uye 512 malaptop.
Disk uye email kunyorera, kuisirwa chokwadi, uye kukanganisa-humbowo kubhowa mune imwechete yekuchengetedza kiyi
Yakagadzirirwa kubvumira vashandisi veLibrem laptop kuti vaone kana paine munhu akanganisa nekombuta yavo software painotanga, iyo Librem Key inotsigirwa neiyo TPM (Yakavimbika Platform Module) chip ine Misoro inogoneswa inowanika pamaLaptop matsva eLibrem 13 ne 15. Maererano nePurism, kiyi yekuchengetedza painopinzwa inopenya girini kuratidza vashandisi kuti iyo laptop haina kukanganiswa nayo kuti vatore pavanenge vasiya, kana ichipenya tsvuku Zvinoreva iyo iyo laptop yakabatikidzwa nayo.
Pamusoro pezvo, iyo Librem Key inounza yakajairika kuchengetedzeka kugona kunowanikwa mune generic chengetedzo tokeni, senge kugona kusevha GPG kusaina uye kunyorera makiyi ekushandisa pane akawanda mawadhi, kugona kwekuchengetedza GPG yekusimbisa makiyi eSSH zvikamu, uye rutsigiro. Kushandisa Imwe- Nguva Mapasipoti kana maviri-Nhanho Verification yekuwana akasiyana mawebhusaiti.
Sezvo Purism ichienderera mberi nekuvandudza chengetedzo yeLibrem malaptop uye ichishanda nesimba kuvhura iyo inotarisirwa kwazvo Librem 5 nhare neLinux, kambani ine zvirongwa zvakakura zveLibrem Key futi, ivo vari kutofunga nezvekuwedzera kugona kwavo ne tsigiro yekuona kukanganisa mukati mekutakura, pakati pezvimwe zvinhu zvakawanda.