How much RAM does the Dell Dimension E521 support?

The Dimension E521 supports up to 4GB of memory across 4 slot(s), up to 1GB per slot.

What type of memory does the Dimension E521 use?

It uses DDR2 DIMM memory modules.

Compatible drive types: SATA 2.5" Hard Drive, SATA 2.5" SSD.

Guaranteed-compatible DDR2 DIMM upgrades for the Dell Dimension E521, in matched-kit options that fill your slots.

This option is out of stock.

Guaranteed-compatible SSD and hard-drive upgrades for the Dell Dimension E521 — matched to its drive bays and slots.

This option is out of stock.

The drive bay size is inferred from the system's reported storage interface.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

This option is out of stock.

The drive bay size is inferred from the system's reported storage interface.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

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 Dell Dimension E521, in matched-kit options that fill your slots.

This option is out of stock.

Guaranteed-compatible SSD and hard-drive upgrades for the Dell Dimension E521 — matched to its drive bays and slots.

This option is out of stock.

The drive bay size is inferred from the system's reported storage interface.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

This option is out of stock.

The drive bay size is inferred from the system's reported storage interface.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

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.