Is my Arduino Uno counterfeit?

Hello, I live in Turkey and i've bought Arduino Uno R3 from a local website. It says that it's the geninue one and I payed 23 dollars for it. I checked my board from here.

And I see the regulator is quite different than it should be. In that photo, there is a 501 k text on the voltage regulator. In mine, there is an infinity sign.

Except that, everything seems fine.

Front of the board
Back of the board
The box

Is that a geninue one?

Looks pretty good to me. They might have got a custom batch of PTC Resettable fuses. I haven't bought a new Uno in ages. (or ever - I still use a couple of Duemilanoves I got in 2010).
Was the plastic case separate?

CrossRoads:
Looks pretty good to me. They might have got a custom batch of PTC Resettable fuses. I haven't bought a new Uno in ages. (or ever - I still use a couple of Duemilanoves I got in 2010).
Was the plastic case separate?

Yes, it was bundled with Arduino. It's easy to detach it.

@ Crossroads

I think a few of the newer boards come with the plastic mount as my YUN direct from Arduino.cc came with one.

FireSwords:
And I see the regulator is quite different than it should be. In that photo, there is a 501 k text on the voltage regulator. In mine, there is an infinity sign.

It is not voltage regulator but polymeric fuse for 0.5A. The original part should be Bourns MF-MSMF050 and the sign on the top should be 50xY, x is the code of year and Y code of week but sometimes lying 8 can be there (I read about it somewhere).

Your board seems to be genuine. If it is counterfeit then in excellent quality.

Budvar10:
It is not voltage regulator but polymeric fuse for 0.5A. The original part should be Bourns MF-MSMF050 and the sign on the top should be 50xY, x is the code of year and Y code of week but sometimes lying 8 can be there (I read about it somewhere).

Your board seems to be genuine. If it is counterfeit then in excellent quality.

Thanks for answering. I think they started to use arduino logo printed fuses for new boards.

As you can see printed on the board and the box, it is an arduino**.org** version. It may slightly different components than the .cc version, but it is the real deal.