D-Link DI-604 rev B1

"GLWRT-4GO Ver : V1.0" + PCB text (0229 date code [July 2002]) is silkscreened on one DI-604 B1's board.

This revision does not appear to be appreciably different from the Ax revisions.. aside from the case (Ax revs. use the ancient style casing, Bx revisions use the boxy grey + teal casing).
 * The OS is assumed to remain ThreadX G3.0f.3.0c on these units..