Max length: 16.77 cm
Max height: 11.13 cm
Width should be fine for any card, looking at internal photos.
I don't believe the T1650's PSU includes PCIe cables.
The motherboard's PCIe x16 slot is not power limited, so allows the standard 75w.
Any of these cards should work:
https://pcpartpicker.com/products/video-card/#xcx=0&c=380&i=39&l=69,167&w=15,75&sort=price&page=1
Some have height of 11.15 cm, though I don't think 1/5 of a millimeter will make much difference.