09-18-2019 04:47 PM
@belogant Welcome to HP Community!
You seem to have one Internal Card - M.2 slot for SSD and here's what you need to know:
(As an upgrade/custom enthusiast I personally love the idea of upgrading the device as well, However, HP recommends that you go easy on it as the device is equipped with parts that perform at its optimal performance and also, the upgradeable parts listed below are purely for your ease, though the decision to upgrade will be at your own discretion)
I hope that answers your query,
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Have a great day ahead.
I am an HP Employee