Maybe some users have experienced some problems, especially when the connection to the PC such as the failure of the connection using Kies. With the hope of a little help, here is the download link software and latest drivers for the U.S. Cellular Galaxy S III (SCH-R530MBBUSC) taken directly from the official page.
SCH-530 Device(Install),Others (Software) (ver.LI4)
Win XP/Vista/Windows 7 | Update: Nov 6, 2012 | Size: 766.31MB
Link: http://downloadcenter.samsung.com/content/SW/201211/20121107093525234/USCC_R530_LI4_SimpleUpgradeTool.exe
Device(Install),Others (Software) (ver.LK5)
Win XP/Vista/Windows 7 | Update: Dec 20, 2012 | Size: 887.49MB
Link: http://downloadcenter.samsung.com/content/SW/201212/20121221085010858/USCC_R530_LK5_Jellybean_SimpleUpgradeTool.exe
SCH-R530 Device(Install),USB Driver (Software) (ver.v1.5.14.0)
Win XP/Vista/Win 7/Win 8 | Update: Nov 9, 2012 | Size: 23.06MB
http://downloadcenter.samsung.com/content/SW/201211/20121110030255344/Samsung_USB_Driver_for_Mobile_Phones_v1.5.14.0.exe
Manual guide for U.S. Cellular Galaxy S III:
User Manual (User Manual) (ver.LG1_F3)
ENGLISH(NORTH AMERICA)
Size: 5.5MB
http://downloadcenter.samsung.com/content/UM/201207/20120710034839691/US_Cellular_R530_Galaxy_S_III_English_User_Manual_LG1_F3.pdf
See the US Cellular Galaxy S III Specs here.