Yes we can ship to AU. Just let me know! my e-mail is firstname.lastname@example.org
As far as industrial hardware. Think of this. If you buy a 29.99 power drill, if you use it every once in a while, it will work just fine. However, if you get a 199.99 commercial drill, you may be overkill for what you need, however, if you use it everyday, you may HATE that 29.99 drill, batteries don't last long enough, don't charge fast enough, not enough power, etc. Same difference here, the 199.99 drill, will get you the things you want, without having to worry about it. Just like what a RB500 is! Its a hardened platform for the software. Yes, if the software has issues, you will have issues regardless of the hardware, but 2.9 etc, and even v3 we have had great success! I have some 500 series unist up for months, heck had one up for over a year without an issue!
The industrial hardware is designed for constant usage over a long period of time, its electrically designed to fail less! I.e. Normal PC power supply, less than 10,000 hours of runtime is standard, yes some have went longer some do not. An Industrial one may be designed for 40,000 hours! 4 times as long. Does that mean it will fail sooner or later, not really, but electrically, it is designed not to fail for that time.
Many people use PCs, go for it, they do work. I'm not saying not to at all. I use 532s and sell them EVERY DAY, why, cause they WORK, WORK REALLY GOOD, for the usage that I need. I could not tell you how many customers of mine called me with failed mikrotiks, why, something stupid, power supply, hard drives, main boards, Ethernet ports! Ya name it.
, MCTCE, MTCNA, MCTCTE, MTCWE, MTCNIE, A+, N+, MCP, MTCSE Mikrotik Certified Consultant / Trainer
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-- Author of "Learn RouterOS: Second Edition"