How much RAM does the Dell XPS 15 (l521x) support?

The XPS 15 (l521x) supports up to 16GB of memory across 2 slot(s), up to 8GB per slot.

What storage drives fit the Dell XPS 15 (l521x)?

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

Guaranteed-compatible SSD and hard-drive upgrades for the Dell XPS 15 (l521x), matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Dell XPS 15 (l521x) — 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.

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Guaranteed-compatible SSD and hard-drive upgrades for the Dell XPS 15 (l521x), matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Dell XPS 15 (l521x) — 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.