Which Hard Drives work in Power Mac G4 Dual 1.42

I would like to upgrade my Power Mac G4 Dual 1.42 and add another hard drive but I'm not sure which type will work. I read in support docs that the machine supports ATA drives. Does this mean ATA-100, Ultra- ATA, SATA or something else? I'm not positive on all the differences or what is supported. Any help would be appreciated. Thank you.

The fastest drives currently available are the ones that will be sold as sATA drives, because they are the newest. Those same drives will be sold with SCSI and pATA interfaces, and often with Fiber Channel interfaces. If you want the fastest transfer speeds of anything, choose Fiber Channel.
The advertised transfer rates of today's drives sound very impressive. But the bottleneck in today's drives is not the transfer rate. It is the bit density and the spin rate (RPM). A good 10,000 RPM drive (any interface) can produce a burst of data off the platters at about 50 MegaBytes a second. Then there will be a pause as it syncs up to read the next block.
The drive can be written to at a slightly faster rate, but we typically read four times as often as we write (over a large sample of typical tasks), so the payback of really fast writes to the drive cache is diminished.
sATA's major advantage is that it is Cheaper to manufacture. When that cost savings starts to be passed along to me, I will recommend it. Today you are paying extra for specs you will not see in daily use. What they are selling is Hype.
Would you pay more for a car because it has the motor mounts for the supercharged engine?
PS. Your Mac is exempt from the 128 MB limit:
86178- Macintosh: Using 128 GB or Larger ATA Hard Drives
Message was edited by: Grant Bennet-Alder

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