Question about CSL Gaming PC M10940

Yes, the graphics card will generally fit if an 8-pin power connection is available. If not, you could replace the power supply unit or find a suitable solution.

Is the power supply with an 8-pin power connector coming with the PC?

Yes, you can install the Biostar GeForce GTX 1660 Ti 6 GB graphics card into this PC, provided the PC has a compatible PCIe x16 slot and sufficient power supply with an 8-pin power connector. The graphics card uses a PCIe 3.0 x16 interface and requires one 8-pin supplementary power connector, so ensure the PC's motherboard and power supply support these requirements. The PC currently has integrated AMD Radeon Graphics, so installing the GTX 1660 Ti will be an upgrade to a dedicated desktop GPU. Verify the physical space inside the PC case can accommodate the card's length of 229 mm and 2-slot width.