ASUS router firmware are universal, can be used in any region. No worries. But bear in the mind, if something goes wrong, ASUS Malaysia won't entertain your warranty claims.

Asus router is using global firmware, just the BIOS inside of the router was locked to different region. The China set only has 2 languages, Simplified Chinese and English only and the wifi region was set to China region as default. However, you can change to Asia or Australia region for the wifi.

Probably every countries are using different bands on their own country optical fiber broadband. When you connect the Asus router to a Unifi BTU, it will automatic show up Unifi-Home, Unifi Business, Maxis-Home, Maxis Business in the IPTV settings. If you connect to TIME BTU, the router may showing up TIME-Home and TIME-Business too. Since TIME is using the different band, so my router does not showing up TIME in the IPTV list.

Just pick your ISP, then done and ready to enjoy and surf your internet.

Let me tell you a little story about US refurbished set.

They are all returned in US due to some defects and sent to China for repair before getting into your hands.

One potential issues that may happen after some time is malfunctioning 2.4Ghz or 5Ghz.