Good replacement for OmniTIK U-5HnD

Hi,
I have a OmniTIK U-5HnD for Point to Point connection to 3 SXT-G.
I also use a second Ether port of the OmniTIK for connecting a printer on a VLAN.
I like to replace this device and want something faster and more Wirless Power.

What is a good replacement?

http://routerboard.com/RB921UAGS-5SHPacD-NM
+
https://www.ubnt.com/airmax/airmax-omni-antenna/