Filter
Top Products
Specifications 79
Power Supply
DC line input
m Line voltage: 128.5 V DC
Power Requirements for Devices You Can Connect
USB devices
m Each of the computer’s built-in USB ports is allotted 500 milliamperes (mA).
FireWire devices
m The computer can provide up to 10 W total to the FireWire ports.
System Clock and Battery
m CMOS custom circuitry with long-life lithium battery. You can purchase replacement
batteries from an Apple-authorized dealer.