Another "is this enough hardware" question

Question

I played with UTM a few years back through work, and we're about to become foster carers, so I now feel the need to control what the home internet connection is used for. I don't want to spend millions - the wife would veto that - but I want something relatively saleable. 
 The basic idea is that I use my existing Asus router as an access point, then monitor/filter/log everything except traffic from designated MACs/IPs. 
 I have a 400mbit down 22mbit up internet connection, so I'm conscious that I need to be aware of CPU usage etc. 
 Load will be various mobile devices, tablets, TVs streaming Netflix etc, a few computers connected by LAN, up to 5 total users. 
 I'm looking at this: 
 http://www.mini-itx.com/~JBC420 
 Only 2 LAN but I will use my existing Asus router as a switch/access point. 
 The N3160 is Braswell so supports AES-NI etc. I have mSATA SSDs and RAM for it kicking around already. 
 Is this likely to be a bottleneck?

Argo · Accepted Answer

Hi Richard, 
 the 3160 chip is good, I have a Zotac CI323 Nano (60Gb SSD/8Gb RAM) box with much the same setup (except that it is a 3150), although I had heard a while ago with problems with the NICs on the Jetway boxes, I am not sure about these issues now (they may well be fixed), I have the home license installed. 
 FYI: the other boxes from Zotac don't seem to play well with Sophos (or Linux for that matter). 
 Even when I have all the modules running, I don't see it getting much above the 15% mark (on a 40/10 FTTC), and that's when I am streaming 2 HD Videos. 
 remember that the Home license only supports 6Gb of RAM.

Argo · Answer

Hi Richard, 
 when I was hitting just under 15%, I was trying to find out what my maximum CPU was going to be, so I used everything, all modules working, even created an SMTP server and ran some very large file through it, while surfing the web, and also running application control, (and a S2S VPN). 
 Obviously, there would be no need to proxy video streams from netflix & amazon prime, etc. 
 currently I have about 30 devices inside the network, most of which are on wifi (2 x AP50) with a mesh network, and four of those devices stream videos (Kodi, netflix, amazon prime, etc) and I hardly hit the 5% mark. 
 the I211's will not be a problem, currently have an SG135 on the bench at work, which has these NICs. 
 I wanted to find a unit with the intel 3160 (lower power and more bang for the buck so to speak), but at the time could only find the 3150 available. 
 
 good to know that the UTM supports all RAM, always thought it was just 6Gb.