How much RAM does the Sony VAIO VGN-CS21Z/Q laptop support?

The VAIO VGN-CS21Z/Q laptop supports up to 4GB of memory across 2 slot(s), up to 2GB per slot.

What storage drives fit the Sony VAIO VGN-CS21Z/Q laptop?

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

Guaranteed-compatible SSD and hard-drive upgrades for the Sony VAIO VGN-CS21Z/Q laptop, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Sony VAIO VGN-CS21Z/Q laptop — 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 Sony VAIO VGN-CS21Z/Q laptop, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Sony VAIO VGN-CS21Z/Q laptop — 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.