1gb 1024MB 128x64 PC3200 400MHz DDR DIMM non ECC 2.5 volts spec CL=3 latency. Most machines require this memory in matching pairs.Buy and install in pairs (for a pair OR 2gig kit please buy quantity 2). Compatible memory for iMac G5 2.0GHz 20" (M9845LL/A)
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