No, 1080 Ti's require 2 x 8 pins and the G2 1300W comes with 6 VGA ports on the PSU and 2 x 6+2 + 6 cables and 4 x 6+2 cables
That's 5 x 8 pins total (they might as well come with only 8 pin single cables) without converters meaning it can only handle exactly 3 pieces of 1080 Ti's.
I have 36x 1080 Ti's (4 different models) and 30 of them (3 different models) are using 8+6 pins. Only one of the four models use 8+8 pins.
Huh, didn't know that but I can see the FE also has 8+6.