- Reliable 2.4 GHz wireless connection with multiple pairing protocol
 - Be eco-friendly with 65% post-consumer recycled plastic for both keyboard and mouse
 - Low-profile 2.5-zone keyboard layout
 
Category: Keyboards
        | Device interface | RF Wireless | 
|---|---|
| Mouse included | Yes | 
| Connectivity technology | Wireless | 
| Backlight | No | 
| SKU | 4X31N50745 | 
| EAN | 0195892093503 | 
| Manufacturer | Lenovo | 
| Availability | In Stock | 
| Keyboard | |
|---|---|
| Key travel distance | 1.95 cm | 
| Recommended usage | Home/Office | 
| Keyboard form factor | Full-size (100%) | 
| Keyboard layout | QWERTY | 
| Windows keys | Yes | 
| Pointing device | No | 
| Numeric keypad | Yes | 
| Keyboard language | UK English | 
| Connectivity technology | Wireless | 
| Certification | CB, TUV Mark, CE, cTUVus, FCC, IC, IMDA, WPC, BIS, SIRIM, NBTC-SDOC, SDPPI, NTC, AITI, TRC, NCC, BSMI, MSIP, VCCI, JRF, KVALITET, ICASA, TRA, NTRA, MOC, PTA, ICT, EQM, BOCRA, ARCT, ETA, NCA, POTRAZ, etc. | 
| Device interface | RF Wireless | 
| Keyboard keys operating life | 10 million characters | 
| Design | |
| Product colour | Black | 
| Backlight | No | 
| Certification | CB, TUV Mark, CE, cTUVus, FCC, IC, IMDA, WPC, BIS, SIRIM, NBTC-SDOC, SDPPI, NTC, AITI, TRC, NCC, BSMI, MSIP, VCCI, JRF, KVALITET, ICASA, TRA, NTRA, MOC, PTA, ICT, EQM, BOCRA, ARCT, ETA, NCA, POTRAZ, etc. | 
| Technical details | |
| Product colour | Black | 
| Backlight | No | 
| Windows keys | Yes | 
| Numeric keypad | Yes | 
| Number of products included | 3 pc(s) | 
| Connectivity technology | Wireless | 
| Form factor | Ambidextrous | 
| Warranty period | 3 year(s) | 
| Receiver | |
| Wireless receiver interface | USB Type-A | 
| Receiver type | Nano receiver | 
| Power | |
| Service life of battery | 15 month(s) | 
| Power source type | Battery | 
| Mouse battery type | AA | 
| Number of batteries (mouse) | 1 | 
| Keyboard battery type | AAA | 
| Number of batteries (keyboard) | 1 | 
| Mouse | |
| Form factor | Ambidextrous | 
| Buttons type | Pressed buttons | 
| Movement resolution | 1600 DPI | 
| Movement detection technology | Optical | 
| Buttons quantity | 3 | 
| Scroll | Yes | 
| Scroll type | Wheel | 
| Mouse battery type | AA | 
| Number of batteries (mouse) | 1 | 
| Mouse included | Yes | 
| Buttons durability (million clicks) | 3000000 | 
| Mouse battery life | 18 month(s) | 
| Operational conditions | |
|---|---|
| Operating temperature (T-T) | 0 - 40 °C | 
| Operating relative humidity (H-H) | 20 - 95% | 
| Certificates | |
| Certification | CB, TUV Mark, CE, cTUVus, FCC, IC, IMDA, WPC, BIS, SIRIM, NBTC-SDOC, SDPPI, NTC, AITI, TRC, NCC, BSMI, MSIP, VCCI, JRF, KVALITET, ICASA, TRA, NTRA, MOC, PTA, ICT, EQM, BOCRA, ARCT, ETA, NCA, POTRAZ, etc. | 
| Weight & dimensions | |
| Mouse weight | 65.5 g | 
| Mouse dimensions (WxDxH) | 110.1 x 61.5 x 36.1 mm | 
| Keyboard weight | 406.5 g | 
| Keyboard dimensions (WxDxH) | 422.3 x 134.5 x 21.9 mm | 
| Packaging data | |
| Wireless receiver interface | USB Type-A | 
| Receiver included | Yes | 
| Package weight | 680 g | 
| Receiver type | Nano receiver | 
| Package width | 520 mm | 
| Package height | 42 mm | 
| Package depth | 142 mm | 
| Number of products included | 3 pc(s) | 
| Warranty period | 3 year(s) | 
| Packaging content | |
| Wireless receiver interface | USB Type-A | 
| Receiver included | Yes | 
| Receiver type | Nano receiver | 
| Number of products included | 3 pc(s) | 
| Other features | |
| Warranty period | 3 year(s) | 
| Pointing device | No | 
| Connectivity technology | Wireless | 
| Product | 
                        
                            
    
         
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|---|---|---|---|---|---|---|
| SKU | 
                                 
                                                                                                                                4X31N50745                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                FRU42C0060                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                FRU54Y9400                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                FRU94Y6050                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                73P5220                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                41A5100                                                                                                                         
                             | 
                                            
| Manufacturer | 
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Lenovo                                                                                                                         
                             | 
                                            
| Keyboard layout | 
                                 
                                                                                                                                QWERTY                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                QWERTY                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                            
| Mouse included | 
                                 
                                                                                                                                Y                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N                                                                                                                         
                             | 
                                            
| Recommended usage | 
                                 
                                                                                                                                Home/Office                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Universal                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Universal                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Universal                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                N/A                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Universal                                                                                                                         
                             | 
                                            
| Device interface | 
                                 
                                                                                                                                RF Wireless                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                USB                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                USB                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                USB                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                USB                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                USB                                                                                                                         
                             | 
                                            
| Connectivity technology | 
                                 
                                                                                                                                Wireless                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Wired                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Wired                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Wired                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Wired                                                                                                                         
                             | 
                                                                                
                                 
                                                                                                                                Wired                                                                                                                         
                             |