| PartNumber | 64991-S43-4LF | 64991-S43-4 | 64991-S42-4 |
| Description | Headers & Wire Housings Header 86pos | Headers & Wire Housings Header 86pos | Headers & Wire Housings Header 84pos |
| Manufacturer | FCI / Amphenol | FCI / Amphenol | FCI / Amphenol |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | Y | - | - |
| Product | Headers | Headers | Headers |
| Type | Shrouded | Shrouded | Shrouded |
| Number of Positions | 86 Position | 86 Position | 84 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 2 Row | 2 Row | 2 Row |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Mounting Angle | Vertical | Vertical | Vertical |
| Contact Gender | Pin (Male) | Pin (Male) | Pin (Male) |
| Contact Plating | Gold | Gold | Gold |
| Mating Post Length | 8.08 mm | 8.08 mm | 8.08 mm |
| Termination Post Length | 3.05 mm | 3.05 mm | 3.05 mm |
| Series | BergStik | BergStik | BergStik |
| Tradename | BergStik | BergStik | BergStik |
| Current Rating | 3 A | 3 A | 3 A |
| Housing Material | Thermoplastic | Thermoplastic | Thermoplastic |
| Voltage Rating | 1 kV | 1 kV | 1 kV |
| Brand | Amphenol FCI | Amphenol FCI | Amphenol FCI |
| Contact Material | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Insulation Resistance | 5000 MOhms | 5000 MOhms | 5000 MOhms |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 100 | 100 | 100 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 64991S434LF | 64991S434 | 64991S424 |