User Agent String.Com 

User Agent String explained :

Opera 9.64
Opera	Name : Opera
9.64	Opera version
Windows NT 5.1	Operating System: Windows XP
U	Security values: N for no security U for strong security I for weak security
First visit:	2009.03.07 05:25
Last visit:	2018.07.29 07:06
All Opera user agent strings