It has remained in its original, opened packaging since purchased in 2011. 

Model Compaq SG3-350UK Desktop PC (AMD Athlon, 4GB RAM, 750GB HDD, Windows 7).

Untested. Never even switched on! 

Connectivity by Ethernet or by USB.

For further specs, search for Compaq SG3 350UK

Not included is a separately packaged HP 47cm colour flat-screen monitor model HP HSTND-2731-T, which was purchased with it and is similarly never used or tested. If you collect the PC in person, I will include it free.