“Is it model T420s or T420 ? Can the internal memory expanded to 16 GB?”

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• This refurbished model is the ThinkPad T420. The maximum RAM the system can support is 8GB.

  Answered by Lenovo Product Expert 8 years ago

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• This is a model T420-0821. No, the maximum RAM is 8 GB.

  Answered by CommunityAnswer 8 years ago

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