| PartNumber | HDC-S120-31S1-TG30 | HDC-S128-41S1-TG30 | HDC-S128-41S1-KR |
| Description | High Speed / Modular Connectors 120P R/A PCB SOCKET | High Speed / Modular Connectors HDC/SKT/RA/128P/4R/ 1BAY/2.79MMST/30AU | High Speed / Modular Connectors HDC/SKT/RA/128P/4R/ 1BAY/2.79MMST/30AU |
| Manufacturer | 3M | 3M | 3M Electronic Solutions Division |
| Product Category | High Speed / Modular Connectors | High Speed / Modular Connectors | Backplane Connectors |
| RoHS | N | - | - |
| Number of Positions | 50 Position | - | - |
| Number of Rows | 3 Row | - | - |
| Pitch | 2.54 mm | - | - |
| Contact Plating | Gold | - | - |
| Series | HDC | - | - |
| Current Rating | 3 A | - | - |
| Housing Material | Liquid Crystal Polymer (LCP) | - | - |
| Brand | 3M Electronic Solutions Division | 3M Electronic Solutions Division | - |
| Contact Material | Phosphor Bronze | - | - |
| Product Type | High Speed / Modular Connectors | High Speed / Modular Connectors | - |
| Factory Pack Quantity | 140 | 150 | - |
| Subcategory | Backplane Connectors | Backplane Connectors | - |
| Part # Aliases | 04801140334 | 04801140314 15001300407 | - |
| Part Aliases | - | - | 05111194667 70010024159 |