Not compatible with the previous versions.
This is version 3 of the 6 inch 4 post rack
- The opening is slightly wider.
- Support at front and back, which will allow for sliding the cases in and out.
- 3 MM screws only needed to support the rails to the base or to the other rails with the connector.
- 3 MM round magnets can be used in the rails and case to hold them in place.