Hello @WatermelonHeid and welcome! You can install a second 2TB/ M.2/ 2280/PCIe Gen 4x4. The first one is a Gen 5x4 and the 2TB drive is already occupied. The warranty will not be voided unless you damage the device. bye Fishtown Sister model :https://media.medion.com/prod/medion/de_DE/0729/0798/0745/30039605.pdf
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