Hello @Md62498 and welcome. You have a 1TB M.2 PCIe 4x4 SSD and a free connector for an M.2 PCIe 3x4 SSD. You can also replace your current SSD with a 2TB SSD. This hard drive size can also be found in the spare parts list for the 4x4 connector. (Clevo service manual) bye Fishtown
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