Specification for MESSERLEISTE 21P
| Electrical mounting | THT |
| Connector | socket |
| Kind of connector | male |
| Mechanical mounting | for panel mounting, on PCBs |
| Colour | black |
| Contact plating | silver plated |
| Polarisation | A |
| Type of connector | automotive |
| Number of pins | 21 |
| Spatial orientation | straight |