Alternate color or configuration shown Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Gray Lenovo 4Y41C33791. Device interface: RF Wireless, Keyboard number of keys: 21, Purpose: Universal. Product color: Gray. Weight: 3.84 oz (109 g) Manufacturer: Lenovo SKU: 6621991 Manufacturer part number: 4Y41C33791 UPC: 0195477831599 $67.99 Qty: Add to cart Custom wishlist OK Add to wishlist Add to compare list Email a friend Go beyond the limitations of your notebook and complement your workflow with a tactile, responsive 21-key keypad that sports premium scissor-switch keys and is compact enough to take on the go. With an impressive up to 3 months of battery life and a powerful 2.4 GHz wireless connector, you can rest easy knowing that your numeric keypad will be ready for action whenever you are. 21-key numeric keypadIndustry leading scissor switch keysDedicated productivity keys (Calculator, Tab, Equal, Esc keys)Minimalist design with ultra slim profile at 13 mmRechargeable , up to 3 months use in single charge (may vary based on usage)Supports Lenovo Unified Pairing Receiver Overview Specifications Contact Us Go beyond the limitations of your notebook and complement your workflow with a tactile, responsive 21-key keypad that sports premium scissor-switch keys and is compact enough to take on the go. With an impressive up to 3 months of battery life and a powerful 2.4 GHz wireless connector, you can rest easy knowing that your numeric keypad will be ready for action whenever you are. 21-key numeric keypadIndustry leading scissor switch keysDedicated productivity keys (Calculator, Tab, Equal, Esc keys)Minimalist design with ultra slim profile at 13 mmRechargeable , up to 3 months use in single charge (may vary based on usage)Supports Lenovo Unified Pairing Receiver Products specifications Attribute name Attribute value Height -20 - 85 °C Key switch type Tactile Weight 3.84 oz Wireless receiver interface USB Depth 3.35" Ergonomic design Y Pointing device N Device interface RF Wireless Keys operating life 10 million characters Width 5.23" Technical details Product color Gray Features Purpose Universal USB hub N Packaging data Package height 1.69" Package width 7.09" Package depth 5" Package weight 9.77 oz Power Power source type Battery Operational conditions Operating temperature (T-T) 0 - 40 °C Operating relative humidity (H-H) 20 - 95 % Keyboard Keyboard number of keys Y System requirements Windows operating systems supported Y Wireless LAN features Frequency band 2.4 GHz Your name * Your email * Enquiry * Submit Products specifications Attribute name Attribute value Height -20 - 85 °C Key switch type Tactile Weight 3.84 oz Wireless receiver interface USB Depth 3.35" Ergonomic design Y Pointing device N Device interface RF Wireless Keys operating life 10 million characters Width 5.23" Technical details Product color Gray Features Purpose Universal USB hub N Packaging data Package height 1.69" Package width 7.09" Package depth 5" Package weight 9.77 oz Power Power source type Battery Operational conditions Operating temperature (T-T) 0 - 40 °C Operating relative humidity (H-H) 20 - 95 % Keyboard Keyboard number of keys Y System requirements Windows operating systems supported Y Wireless LAN features Frequency band 2.4 GHz Product tags (52291)