How much RAM does the VAIO VPCJ21S1R support?

The VPCJ21S1R supports up to 8GB of memory across 2 slot(s), up to 4GB per slot.

What storage drives fit the VAIO VPCJ21S1R?

Compatible drive types: SATA 2.5" SSD, SATA 3.5" Hard Drive.

Guaranteed-compatible SSD and hard-drive upgrades for the VAIO VPCJ21S1R, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the VAIO VPCJ21S1R — 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.

Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

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Guaranteed-compatible SSD and hard-drive upgrades for the VAIO VPCJ21S1R, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the VAIO VPCJ21S1R — 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.

Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.