iMac G5 20" 1.8 GHz Logic BoardReplace the 1.8 GHz Motherboard compatible with the iMac G5 20" 1.8 GHz. Ports: Mini VGA Port, 1000BaseT Ethernet, 2 Firewire 400, 3 USB 2.0, Audio In, Audio Out. Fix processing issues like unexpected shutdowns or reboots.Lifetime Guarantee$299.99View