512MB 3.3V 168 Pin SDRAM DIMM (PC133).
Fits the following Mac models:

Series	Model#	Built in Ram (Mb)	# of Slots	Max. Memory	Installed in Pairs
iMac G4-Internal Slot (SDRAM Models) 800MHz	M9105LL/A	-	-	1GB	No
iMac G4-Internal Slot (SDRAM Models) 700MHz	M8672LL/A	-	-	1GB	No
iMac G4-Internal Slot (SDRAM Models) 700MHz	M7677LL/A	-	-	1GB	No
iMac G4-Internal Slot (SDRAM Models) 800MHz	M8535LL/A	-	-	1GB	No
iMac G4-Internal Slot (SDRAM Models) 800MHz	M8812LL/A	-	-	1GB	No
eMac G4 700MHz	M8577LL/A	0	2	1GB	No
eMac G4 800MHz	M9150LL/A	0	2	1GB	No
eMac G4 1GHz	M8950LL/A	0	2	1GB	No
eMac G4 1GHz	M8951LL/A	0	2	1GB	No
PowerMac G4 800MHz	M8705LL/A	0	3	1.5GB	No
PowerMac G4 933MHz	M8666LL/A	0	3	1.5GB	No
PowerMac G4 Dual 1GHz	M8667LL/A	0	3	1.5GB	No
PowerMac G4 733MHz	M8359LL/A	0	3	1.5GB	No
PowerMac G4 800MHz	M8493LL/A	0	3	1.5GB	No
PowerMac G4 867MHz	M8360LL/A	0	3	1.5GB	No
PowerMac G4 Dual 800MHz	M8361LL/A	0	3	1.5GB	No
PowerMac G4 466MHz	M7627LL/A	0	3	1.5GB	No
PowerMac G4 533MHz	M7688LL/A	0	3	1.5GB	No
PowerMac G4 733MHz	M8451LL/A	0	3	1.5GB	No
PowerMac G4 733MHz	M7681LL/A	0	3	1.5GB	No