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| PartNumber | U78-B1126-00121 | U78-B4126-00121 | U78-B4126-00421 |
| Description | I/O Connectors Combo Stacked 2x1 SFP | I/O Connectors Combo Stacked 2x4 SFP | |
| Manufacturer | Amphenol | Amphenol Commercial Products | - |
| Product Category | I/O Connectors | Pluggable Connectors | - |
| RoHS | Y | - | - |
| Product | Infiniband Connectors | - | - |
| Number of Positions | 2 Position | - | |
| Contact Plating | Gold | - | - |
| Mounting Style | Press Fit | - | - |
| Mounting Angle | Right | - | - |
| Series | UE78 | U78 | - |
| Current Rating | 500 mA | - | - |
| Features | SFP Cage, Stacked 1 x 1 | - | - |
| Housing Material | Thermoplastic | - | - |
| Brand | Amphenol Commercial Products | - | - |
| Contact Material | Phosphor Bronze | - | - |
| Flammability Rating | UL 94 V-0 | - | - |
| Insulation Resistance | 1000 MOhms | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Product Type | I/O Connectors | - | - |
| Factory Pack Quantity | 40 | - | - |
| Subcategory | I/O Connectors | - | - |
| Tradename | SFP | - | - |
| Packaging | - | Tray | - |
| Termination | - | Press-Fit | - |
| Mounting Type | - | Through Hole, Right Angle | - |
| Connector Type | - | SFP | - |
| Contact Finish | - | Gold | - |
| Contact Finish Thickness | - | 30μin (0.76μm) | - |
| Connector Style | - | Receptacle with Cage, Ganged (2x4) | - |