Routerboard Naming Convention

Can anyone help me with discerning the routerboard naming convention?
IE, what’s the main difference between series 4 and series 7?
R in the device name stands for Radio, U for USB, right?
If there is an internet resource explaining all this, can anyone share a link?

Thanks

I’m also interested in the answer to this. I have some 750 and 450 Routerboards and in certain cases the 450 is faster (pure routing without NAT or ACLs). I don’t understand why. Also, the 450 has Level5 and the 750 only Level4. What’s with that?

A - More Memory
H - High Power
G - Gigabit Port
U - USB
R - Built in Wireless
N - 802.11n

400 and 700 series use a different CPU from each other. 700 series have no console port and a plastic case, designed for a small home or office. 400 series have a console port, separate metal case, and a few other things.

thanks Feklar, couldn’t have written better myself

I found this post useful, but I guess a bit out of date now. Thought I might add a few more.

CCR - Cloud Core Router
D - Dual Chain (2x2 MIMO)
i - Injector (PoE)
S - SFP cage (small form-factor pluggable - mini-GBIC)

Please correct me where I am wrong. I gathered this myself.

I’m still not very clear on the differences between series: 1000, 900, 700, 400, 200
Not sure why something might be a 900 series instead of a 700 series for example, or really what that implies.