4 ms·
http://support.apple.com/kb/HT5219?viewlocale=en_US#dispnum http://support.apple.com/kb/HT5219?viewlocale=en_US#dispnum This says they do.
by gte910h 14y ago
http://support.apple.com/kb/HT5219?viewlocale=en_US#dispnum http://support.apple.com/kb/HT5219?viewlocale=en_US#dispnum
This says they do.