This is a 0.5" × 2" through-hole prototyping SchmartBoard for 9-pin to 25-pin D-SUB Connectors (DB9, DB25). Four ground holes are connected to a copper plane on the bottom side.
Connect multiple SchmartBoards together! Every SchmartBoard has small notches along its sides which allow you to connect any number of them together in any combination. For example, you can attach this SchmartBoard to prototyping SchmartBoards that carry a CPU and/or other electronics. Purchase a set of the Mechanical Bridge Interconnects available in the options below if you want to be able to combine your SchmartBoards.
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