Does an Acer A515-43 laptop have one or two SSD slots?

I had a new Acer Aspire V3-772G-9829 This post discusses how I As shown in a video, this Acer had two drive bays and one mSATA slot

Comments480 · Acer Aspire 3 SSD Upgrade, Memory Upgrade & Additional Hard Drive

acer aspire 3 ssd slot 2 NVMe SSD is not compatible with this model, you have to use a M 2 card with an M-key slot plus a B-key slot The NVME cards however

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