A:AnswerNo. If you wish to add an addition hard drive, you will need to get power and sata data splitters or use the ones from the optical drive. There are only two sata connections. One for the hard drive and one for the optical drive. The other hard drive is a m2 flash drive and connects differently.
A:AnswerArk is a very high powered game. I am not sure that this model would be able to run ARK. You would be able to easily add a Graphics Card later which would certainly bump up the performance capability.