How much RAM does the Sony VAIO VPCZ21DGX/B support?

The VAIO VPCZ21DGX/B supports up to 4GB of memory across 2 slot(s), up to 2GB per slot.

What type of memory does the VAIO VPCZ21DGX/B use?

It uses DDR3 SODIMM memory modules.

Guaranteed-compatible DDR3 SODIMM upgrades for the Sony VAIO VPCZ21DGX/B, 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 DDR3 SODIMM upgrades for the Sony VAIO VPCZ21DGX/B, 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.