How much RAM does the Dell Inspiron 15 (3521) support?

The Inspiron 15 (3521) supports up to 16GB of memory across 2 slot(s), up to 8GB per slot.

What type of memory does the Inspiron 15 (3521) use?

It uses DDR4 SODIMM memory modules.

Guaranteed-compatible DDR4 SODIMM upgrades for the Dell Inspiron 15 (3521), in matched-kit options that fill your slots.

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 DDR4 SODIMM upgrades for the Dell Inspiron 15 (3521), in matched-kit options that fill your slots.

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.