How much RAM does the Dynabook Portege X40-J support?

The Portege X40-J supports up to 64GB of memory across 2 slot(s), up to 32GB per slot.

What type of memory does the Portege X40-J use?

It uses DDR4 SODIMM memory modules.

Guaranteed-compatible DDR4 SODIMM upgrades for the Dynabook Portege X40-J, in matched-kit options that fill your slots.

Verified compatible

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 DDR4 SODIMM upgrades for the Dynabook Portege X40-J, in matched-kit options that fill your slots.

Verified compatible

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.