BC-307, but is not Goldstar. It's OEM version, the chip should be SIRF2. - C( n9 L9 c% B* CSee link: http://www.usglobalsat.com/item.asp?itemid=12 ' n$ A8 R4 C9 T7 WBTW: Are you really intersted in buying that? Cause I think you've already got one, haven't you?6 X2 i8 \2 ^0 P. l9 B* i; `