How to Check SATA Version and Port Number of Your Computer?

I have an Inspiron 15 3000 and I want to add a SATA 3 ssd to it alongside the NVME ssd Does it have a port for it?

If you connect a SATA III SSD to a SATA II port on your motherboard, the SSD will be bottlenecked by the slower port's maximum data transfer rate Can I

sata m2 slot A port multiplier takes a single port of a SATA controller and multiplexes it between several drives Windows typically only accesses one or two

sata slot SATA Power Splitter: 3tfsQzC 4 Port SATA PCIe Card: 3h3Y0Fk