| Product | 
                        
                            
    
         
                        
                        
                            
                                                                Siig DP 4-Port Industrial RS-232 Unive...                            
                        
                                                
    
        £152.42
            
    
        £127.02
        
                         
                     | 
                                                        
                        
                            
    
         
  Bestseller                         
                        
                            
                                                                Adaptec HBA 1100-4i interface cards/ad...                            
                        
                                                
    
        £262.94
            
    
        £219.12
        
                         
                     | 
                                                        
                        
                            
    
         
  Recommended                         
                        
                            
                                                                Broadcom P210TP interface cards/adapte...                            
                        
                                                
    
        £189.72
            
    
        £158.10
        
                         
                     | 
                                                        
                        
                            
    
         
 Hot Product                         
                        
                            
                                                                QNAP QM2 interface cards/adapter Inter...                            
                        
                                                
    
        £142.51
            
    
        £118.76
        
                         
                     | 
                                                        
                        
                            
    
         
 Popular                         
                        
                            
                                                                QNAP QM2-4P-384 interface cards/adapte...                            
                        
                                                
    
        £167.34
            
    
        £139.45
        
                         
                     | 
                                                        
                        
                            
    
         
 New                         
                        
                            
                                                                QNAP QNA-T310G1S interface cards/adapt...                            
                        
                                                
    
        £190.16
            
    
        £158.47
        
                         
                     | 
                            
|---|---|---|---|---|---|---|
| SKU | 
                                 
                                                                                                                                ID-P40111-S1                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                2293400-R                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                BCM957416A4160C                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QM2-2P-244A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QM2-4P-384                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QNA-T310G1S                                                                                                                         
                             | 
                                            
| Manufacturer | 
                                 
                                                                                                                                Siig                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Adaptec                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Broadcom                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QNAP                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QNAP                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QNAP                                                                                                                         
                             | 
                                            
| Internal | 
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                            
| Host interface | 
                                 
                                                                                                                                PCI                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Thunderbolt 3                                                                                                                         
                             | 
                                            
| Output interface | 
                                 
                                                                                                                                Serial                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Mini-SAS HD                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                M.2                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                PCIe                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                SFP+                                                                                                                         
                             |