Since the connector itself has been out of production for over a decade, we harvest these from OEM subaru ecus, and package them together with our printed header case. This header, plus a Fishdog ecu and 2ft harness are what is used to make a plug and play ecu for most 99-03/04 Subarus.
This header is for the three plug JAE variant. You can identify it by the blue, green, and orange retaining clips on the harness plugs at the header. The 4 plug 04+ header is physically different, and not compatible.
Black and white headers are physically identical, and you may receive either color.