How much RAM does the Toshiba 550D support?

The 550D supports up to 2GB of memory across 4 slot(s), up to 0.5GB per slot.

What type of memory does the 550D use?

It uses SDRAM DIMM/RDIMM memory modules.

Compatible drive types: IDE / PATA 2.5" Drive.

Guaranteed-compatible SSD and hard-drive upgrades for the Toshiba 550D, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Toshiba 550D — 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.

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Guaranteed-compatible SSD and hard-drive upgrades for the Toshiba 550D, matched to its drive bays and slots.

Guaranteed-compatible SSD and hard-drive upgrades for the Toshiba 550D — 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.