“Is the system memory currently taking up one slot or two? Is the memory upgradable?”

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• This Lenovo ThinkPad X1 Extreme Gen 4 Laptop, model number 20Y50016US, ships with 16GB DDR4-3200MHz RAM (1x 16GB SO-DIMM DDR4-3200 Non-ECC). There are two DDR4 SO-DIMM slots, dual-channel capable. The maximum supported RAM this model configuration can support is: Up to 64GB DDR4-3200MHz RAM. We recommend you consult with your certified technician about your RAM upgrade options.

  Answered by Lenovo Product Expert 4 years ago

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