BC-307, but is not Goldstar. It's OEM version, the chip should be SIRF2. 3 X, x% e( J& U9 Y0 NSee link: http://www.usglobalsat.com/item.asp?itemid=12 9 f. R3 G* w/ T; \. d% wBTW: Are you really intersted in buying that? Cause I think you've already got one, haven't you?2 w8 a: T" c5 S