Do you think this is safe?

I just bought a new case, a
LIAN LI PC-G70B, it accommodates two power supplies.
and I have two identical power supplies,
ULTRA-QUIET PSU: SILENCER 610 EPS12V
I was wondering if you all think it's safe to use this below to run both.
Double Your Possibilities
This 24-pin adapter gives you the ability to daisy chain two power supplies in your computer. For the most powerfull rigs out there, sometimes you just need more power. Evenly distributed power makes your system run smoothly and extends the lifetimes of each of your power supplies. Like all Ultra cables this dual power supply adapter must undergo the industry
LIAN LI PC-G70B, it accommodates two power supplies.
and I have two identical power supplies,
ULTRA-QUIET PSU: SILENCER 610 EPS12V
I was wondering if you all think it's safe to use this below to run both.
Double Your Possibilities
This 24-pin adapter gives you the ability to daisy chain two power supplies in your computer. For the most powerfull rigs out there, sometimes you just need more power. Evenly distributed power makes your system run smoothly and extends the lifetimes of each of your power supplies. Like all Ultra cables this dual power supply adapter must undergo the industry