You should be able to find 10TB HDD in Lazada (or Shopee I believe).
In Lazada,
Livinggears is selling Toshiba N300 for RM1055
CGI is selling Seagate Ironwolf for RM1488
I happen to buy from CGI a 10TB Ironwolf Pro for about RM1200 last December after some good discount offered by CGI + Lazada bonus rebate + CC rebate.
This works out to be about USD300.
I think at this price point, it is better to get from local Lazada/Shopee.
Other than the warranty issue highlighted by sHawTY, you may also need to take into account the hefty shipping charges+import fees imposed by Amazon.
Not to mention that the HDD would be shipped all the way from US.
Such a long journey does not sounds good for a sensitive/fragile item like HDD.