How much RAM does the HP Pavilion a6721cs support?

The Pavilion a6721cs supports up to 4GB of memory across 2 slot(s), up to 2GB per slot.

What type of memory does the Pavilion a6721cs use?

It uses DDR2 DIMM memory modules.

Guaranteed-compatible DDR2 DIMM upgrades for the HP Pavilion a6721cs, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

Good to know

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 HP Pavilion a6721cs, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

Good to know

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.