One thing that was not mentioned in presentation is that this one will also support dude server package. uSD slot on it also provides decent r/w speed for db storage on microSD card.
That is nice. I still think it is a mistake to cut down the flash to 16MB, this is going to bite you/us sooner or later.
From datasheet - The MT7621 router on a chip includes a 880 MHz MIPS® 1004 Kc™ CPU dual-core
http://ftp.mqmaker.com/WiTi/Docs/Hardware/MT7621.pdf
“external micro SD slot and card support”
I predict that sooner or later there will be issues installing/upgrading RouterOS and additional packages inside the 16MB.
I don’t think there will be support for software installation on the SD card, that would break the security of RouterOS.
When the mighty new RouterOS v7 is released with all those new features, it will not fit…
We list them as RB750Gr2 and RB750Gr3. Not hEX. We do have both in stock and they are listed as different products. Our RB750Gr2 supply is limited and will probably be gone this week.
Talk to your distributors. Although this change caught us by surprise, we did catch it and we are usually on top of changes like this. We knew which RB850Gx2 boards had hardware encryption and which did not. And we quickly sold out of the old version at a reduced price when the encrypted model became available.
The easy thing to do is call your distributor and ask them. Most are human. And you might be surprised what they know. 
Tom
!!! This I like!
RB750Gr3 CPU - MIPS 1004Kc V2.15 880MHz (Quad Core?) - should be renamed RB666-TheBeast )
It has 2 cores and 4 threads in total.
I have not tried that yet. I order my MikroTik stuff at a generic “router webshop” that sells 25 different brands of routers and
does not even show MikroTik when you open the default page for routers. Probably a good thing, you don’t want to sell these
to the typical family looking for a router for their cable internet…
I see that the item now shows in the shop as “MikroTik hEX RB750GR2”, I think they recently added that RB part, other new
types with marketing names like “hAP lite” don’t mention the specific product code in the item title.
A few words of warning about Micro-SD cards.
If you are going to store “The Dude” database on micro-sd you would be wise to use a MLC based Micro-SD card.
If you use one of the Sandisk Ultra / Samsung EVO / Cheap Junk Micro-SD cards you will likely wear it out very quickly.
Known “Good” MLC Micro-SD cards are:
Sandisk High Endurance Series (white card)
Transcend High Endurance Series (silver card)
Lexar 300x UHS-I
Lexar 633x UHS-I
Samsung PRO Series
Transcend Ultimate 600x UHS-1
some brands have industrial micro sd cards with improved writing endurance, i think that will be nice to use to databases like this
ohh yeah
+1 for that, 720mhz cpu on hap ac is not capable of heavy mangle and queue tree at 802.11ac 40mhz/80mhz throughput
+1 - yes MikroTik, if you combine this routing power with AC wireless triple chain 5GHz and 2.4GHz, you will have a killer product for home or SOHO routers.
Does anyone knows exactly realise date of RB750Gr3 aka hEX? Want to buy it in Moscow, Russia, but don’t know when it will be available?
Our gr3s shipped on September 29th. They were on back order before that. I would suspect that is the “release date”. You will have to ask your distributors in Moscow. Mikrotik has not yet officially announced it to distributors in our newsletter so many are not yet aware of the change. Although it was announced in the Mikrotik new products presentation recently at MUM in Russia.
Oh, that’s why I got an mmips architecture package some time ago when downloaded all archs of some ROS version… What a nice HW upgrade.
another interesting topic is to know the switch chip features of this device
Why there is no USB on this?
on RB750 references only PoE versions come with that feature
i dont know why