I/O port camera mount. Very good condition except the aluminum base was a little "over stressed" because I over tighten it during initial installation. But it mounts fine and does not move and as long as it's not over tighten again, it will not break. It fits the Spraco harness bar perfectly. $120 new. I will take $60 shipped anywhere in 48 States. The 2nd picture shows the "stress mark" on the base. Thanks.