This is a 2011 iMac, running High Sierra with the apple wireless keyboard but no mouse or trackpad.
The iMac was significantly upgraded by the co-founder of the company I used to work for. It has a 2 TB HDD and a 250GB SSD.
It comes with 16GB of RAM. For such an old machine it really does fly although it is limited in terms of software updates given its age.

It's in good condition, the screen has no noticeable scratches. The keyboard works perfectly, and there is a small shelf that connects to the front or back of the iMac for headphones or whatever.
I have formatted the drives and reinstalled High Sierra so it's pretty much ready to go.

Prefer collection only given the size but can send via Royal Mail.
I'm based in South east London and available pretty much anytime.

Grab yourself a great machine!