How much RAM does the Apple iMac G5 2.1GHz 20 support?

The iMac G5 2.1GHz 20 supports up to 2GB of memory across 1 slot(s), up to 2GB per slot.

What type of memory does the iMac G5 2.1GHz 20 use?

It uses DDR2 DIMM memory modules.

Guaranteed-compatible DDR2 DIMM upgrades for the Apple iMac G5 2.1GHz 20, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

Good to know

Faster modules automatically run at your system's maximum supported speed.
Maximum capacity per slot is inferred from total capacity ÷ number of slots.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

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Guaranteed-compatible DDR2 DIMM upgrades for the Apple iMac G5 2.1GHz 20, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

Good to know

Faster modules automatically run at your system's maximum supported speed.
Maximum capacity per slot is inferred from total capacity ÷ number of slots.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.