Manual
Page 23
... detects other Ethernet devices. £ Mini DisplayPort Output port with Your iMac 23 f Headphone out/optical digital audio out port Connect headphones, external powered speakers, or digital audio equipment. The port provides up to another computer and transfer files. The 27-inch model also supports input from external DisplayPort sources. G Ethernet port (10...
... detects other Ethernet devices. £ Mini DisplayPort Output port with Your iMac 23 f Headphone out/optical digital audio out port Connect headphones, external powered speakers, or digital audio equipment. The port provides up to another computer and transfer files. The 27-inch model also supports input from external DisplayPort sources. G Ethernet port (10...