BC-307, but is not Goldstar. It's OEM version, the chip should be SIRF2. ; z: P9 L/ r$ n- n$ VSee link: http://www.usglobalsat.com/item.asp?itemid=12 & W7 B* O9 Q/ ~- A vBTW: Are you really intersted in buying that? Cause I think you've already got one, haven't you?! u! W1 H r! }2 y+ w; ?; u