| PartNumber | 531721-1 | 531721-2 | 531721-4 |
| Description | Headers & Wire Housings 2ROW BOX PIN 30P R/A | Headers & Wire Housings 40P 2 ROW BOX PIN R/A | Headers & Wire Housings 2R BOX PIN 60P R/A |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | N | - | N |
| Product | Headers | Headers | Headers |
| Type | Shrouded | Shrouded | Shrouded |
| Number of Positions | 60 Position | 40 Position | 60 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 2 Row | 2 Row | 2 Row |
| Mounting Style | - | Mounting Flange | - |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Contact Gender | Pin (Male) | Pin (Male) | Pin (Male) |
| Contact Plating | Gold | Gold | Gold |
| Series | Box Connector 1001 | Box Connector 1001 | Box Connector 1001 |
| Housing Material | Polyester | Polyester | Polybutylene Terephthalate (PBT) |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Contact Material | Brass | Brass | Brass |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 2 | 2 | 2 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 531721-1 | 531721-2 | 531721-4 |
| Mounting Angle | - | Right Angle | Right Angle |
| Mating Post Length | - | 5.46 mm | - |
| Termination Post Length | - | 3.42 mm | - |
| Accessory Type | - | - | - |
| Application | - | Wire to Board | - |
| Contact Type | - | - | - |
| Row Spacing | - | 2.54 mm | - |
| Housing Gender | - | - | - |