| PartNumber | XM3D-3721 | XM3D-2521 |
| Description | D-Sub Standard Connectors D-Sub Connector | D-Sub Standard Connectors D-Sub Connector |
| Manufacturer | Omron | Omron |
| Product Category | D-Sub Standard Connectors | D-Sub Standard Connectors |
| Number of Positions | 37 Position | 25 Position |
| Number of Rows | 2 Row | 2 Row |
| Shell Size | 4 (C) | 3 (B) |
| Filtered | Unfiltered | Unfiltered |
| Brand | Omron Electronics | Omron Electronics |
| Insert Arrangement | C37 | B25 |
| Product Type | D-Sub Connectors - Standard Density | D-Sub Connectors - Standard Density |
| Factory Pack Quantity | 40 | 50 |
| Subcategory | D-Sub Connectors | D-Sub Connectors |
| Part # Aliases | XM3D3721 | XM3D2521 |