I actually ask this question for all acer users. But why?
I bought Acer Predator G3-571(Helios 300) from USA.But i live in Turkey. Everything ok for me when i need extra storage i bought new hdd and opened my hdd cover and wadaa... 
There isn't hdd caddy (42.Q28N2.SV1) and hdd cable (50.Q28N2.004). Then i contact to Acer Turkey. After 2 weeks still no answer 
I contact to PREDATOR PREMIUM SERVICE from chat with a predator line service professional. She said me sorry about that and we can send u these parts but u must live US or CANADA. But i live in Turkey and Amazon sold to Turkey. So...
If Acer a global company why u can't send these parts all over the world?
If predator special model for US countries why amazon sold all over the world.
Now u say Acer is a global company?