Searched Hi/Low for this item. Similar products were 5 X more expensive. So far, it works like a charm!
Would recommend it to anyone!

Grayfox442

This Macally looks nice and worked fine. For six months. Now I'm trying to work with the warranty folks at Macally. Wish me luck.Macally PS-AC4 AC Power Adapter for Apple G4

Nice form factor etc...but bad function. Product appears to charge my Powerbook G4 12" when it is off or asleep, but when working it cycles on and off and emits a faint buzzing sound from the brick. Try another product.

This unit is only 48W. The original Apple part (A1021) is 65W. The result is that a full charge for my iBook is 7Hrs rather than 3-4. Check the wattage of your original adapter. Watts = DC Volts * DC Amps. Otherwise quality is good.

This is a good replacement for my original power supply. Good buy for the price but I miss the charging light on the plug on the computer end of the cable. With this replacement supply to find out if the computer is still charging or fully charged you have to turn the computer on look at the battery screen.