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The maximum RAM the Lenovo Yoga 9i-15 model number 82DE0009US, can support is the 16GB DDR4-2933MHz RAM it ships with. This RAM is soldered to the motherboard and is not upgradeable. This configuration ships with on standard USB Type A port 3.2 version and two Thunderbolt 3.0 version ports. You can add additional USB port by using a USB Hub or a universal Thunderbolt 3.0 docking station for HDMI connectivity.
Sorry, there was a problem. Please try again later.I don't see any slots or bays for expandability. It only has one old-school USB part. The other two are USB C of some extra high speed type. You would have to use a docking station through the USB C to add what do you want.
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