[G4] SATA drive

[Peter]

A friend is upgrading the HD on his G5  and has offered my the old 
SATA drive  for my G4. Meantime, he has given me a patch lead (which 
he says is connected to a power supply) with a SATA drive connection. 
He assures me it should be plug and play but, I'm not so sure. Any 
advice?

[System- macintosh G4 Digital Audio; OSX 10.4.1; 1GHz; 896 Mb SDRAM]
-- 
Peter

The box said "Windows '98 or better", so I bought a macintosh.