As already noted under the UD tab Igel's UD5 range has been through a number of generations. Anything described as a UD5 could be one of various bits of hardware. Here's my best guess.
|2||January 2009||H700C||1.5GHz||Via C7|
|3||October 2011||H710C||1.3GHz||Via Nano|
|4||October 2013||H820C||2.41 - 2.58 GHz||Intel Celeron J1800 (Dual Core)|
Of these I have seen the H700C.
Any comments? email me. Last update May 2015