https://manuals.info.apple.com/it_IT/macbook_pro_13inch_late_2011_t.pdf
https://manuals.info.apple.com/it_IT/imac_21.5inch_late_2011_ug_t.pdf
https://manuals.info.apple.com/it_IT/thunderbolt_display_getting_started_1e.pdf
https://manuals.info.apple.com/it_IT/macbook_air_13inch_mid2011_ug_it.pdf
https://manuals.info.apple.com/it_IT/macbook_air_11inch_mid2011_ug_it.pdf
https://manuals.info.apple.com/it_IT/mac_mini_mid2011_ug_it.pdf
https://manuals.info.apple.com/it_IT/mac_pro_server_mid2010_ug_t.pdf