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I just got off the phone with Asus and the rep told me it had only one M.2 slot so if adding an additional hard drive it must be a 2.5. You can add up to an additional 512 GB putting your total at roughly 1 TB. The previous answer by Asus here makes it sound like you can add another M.2. I do not think the motherboard has two M.2 interfaces but rather 1 M.2 which houses the 512 that it comes with and another 2.5 slot for an SSD but not an M.2
Sorry, there was a problem. Please try again later.You can install a M.2 256GB PCIe*2 SSD or M.2 512GB PCIe*2 SSD.
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