| Product | 
                        
                            
    
         
  Bestseller                         
                        
                            
                                                                StarTech.com 4 Port PCI Express PCIe S...                            
                        
                                                
    
        £41.69
            
    
        £34.74
        
                         
                     | 
                                                        
                        
                            
    
         
 Hot Product                         
                        
                            
                                                                StarTech.com 3 Port 2b 1a 1394 PCI Exp...                            
                        
                                                
    
        £59.40
            
    
        £49.50
        
                         
                     | 
                                                        
                        
                            
    
         
 New                         
                        
                            
                                                                DeLOCK 4 x serial PCI Express card int...                            
                        
                                                
    
        £51.20
            
    
        £42.67
        
                         
                     | 
                                                        
                        
                            
    
         
 Popular                         
                        
                            
                                                                StarTech.com PCI Express to PCI Adapte...                            
                        
                                                
    
        £40.81
            
    
        £34.01
        
                         
                     | 
                                                        
                        
                            
    
         
  Recommended                         
                        
                            
                                                                StarTech.com 1-port PCI Express RS232...                            
                        
                                                
    
        £39.12
            
    
        £32.60
        
                         
                     | 
                                                        
                        
                            
    
         
                        
                        
                            
                                                                StarTech.com 2-Port PCI Express RS232...                            
                        
                                                
    
        £40.22
            
    
        £33.52
        
                         
                     | 
                            
|---|---|---|---|---|---|---|
| SKU | 
                                 
                                                                                                                                PEXUSB3S4V                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PEX1394B3                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                89178                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PEX1PCI1                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PEX1S553LP                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PEX2S553                                                                                                                         
                             | 
                                            
| Manufacturer | 
                                 
                                                                                                                                StarTech.com                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                StarTech.com                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                DeLOCK                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                StarTech.com                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                StarTech.com                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                StarTech.com                                                                                                                         
                             | 
                                            
| Internal | 
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                            
| Host interface | 
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                            
| Output interface | 
                                 
                                                                                                                                USB 3.2 Gen 1 (3.1 Gen 1)                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Serial                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Serial                                                                                                                         
                             |