... (4-pin) (for selected models, yet for Aspire 3680/ 5570/ 5580, there is no IEEE 1394 port) T Infrared port (for selected models, yet for Aspire 3680/ 5570/ 5580, there is no Infrared port) T External ... yet Aspire 3680/ 5570/ 5580 not have IEEE 1394 port) Infrared port Interfaces with infrared devices (e.g., infrared printer and IR-aware computer) (for selected models, yet Aspire 3680/ 5570/ 5580 ... Item Chipset Specification Intel® 945GM (for Aspire 5570/ 5580 UMA models) and Intel® 940GML (Aspire 3680) Nvidia G7300 (G72M-V) (for Aspire 5570/ 5580 discrete models) Chapter 41 Video Interface...