#     [  Archive  PR622 → MCT66E-IO v.1.0.4.259](https://www.roger.pl/en/support/technical-support/download/firmware/2170-pr622-mct66e-io-v-1-0-4-259-1)

 [  Download  (zip, 36 KB) ](https://www.roger.pl/en/support/technical-support/download/firmware/2170-pr622-mct66e-io-v-1-0-4-259-1/file)