- 128 DIMM 0/J13 64 Mb PC100 222s DIMM 1/J14 64 Mb PC100 322s SDRAM (3.3 V, 64-bit, 168-pin, 100 MHz) - G3 500 MHz - iMac 406 PB-G3/iMac 66 MHz SODIMM 256 iMac 233: CK8465X7EUL 128mb 25.00 256mb 41.50 128MB 144p PC100 8c SDRAM SODIMM $39.98 256MB 144pin 3.3v SDRAM PC100-222 SODIMM $49.98 iMac 500 128mb 22.00 256mb 31.00 512mb 72.00 64mb SDRAM PC100-222 (3.3-volt, unbuffered, 64-bit-wide, 168-pin, running at 100 MHz cas latency 2)