Lenovo Professional Wireless Keyboard - US English
Prices in SGD, excluding 9% GST.
PRODUCT DESCRIPTION
Lenovo Professional Wireless Keyboard (4X30H56841) - 2 Years Warranty, Singapore Local Warranty
Full-Size Wireless Keyboard With Number Pad
The Lenovo Professional Wireless Keyboard gives you a full-size layout with a dedicated number pad, connecting over 2.4 GHz wireless through a small USB nano receiver.
Up to Two Years on AA Batteries
It runs on two AA batteries (included), with Lenovo quoting about 2 years of battery life in typical commercial use (varies with usage). An LED indicator warns when the batteries are running low, and an on/off switch saves power.
Comfortable Office Typing
Low-profile island-style keys, adjustable tilt legs and dedicated one-touch media keys make it comfortable for long working days, while the spill-resistant design helps it survive the occasional coffee accident.
Encrypted Wireless Link
Keystrokes are protected with 128-bit AES encryption between keyboard and receiver — a sensible choice for offices handling sensitive data.
Lenovo Professional Wireless Keyboard Datasheet — Technical Specifications
General
| Product | Lenovo Professional Wireless Keyboard |
| Part Number | 4X30H56841 |
| Product Type | Full-size wireless keyboard with number pad |
| Layout | US English |
| Manufacturer Warranty | 2 years |
| Local Warranty (Singapore) | Included with every SourceIT purchase, with GST invoice |
Connectivity
| Wireless | 2.4 GHz via USB nano receiver |
| Security | 128-bit AES encryption |
| Receiver Power | 5 V, 100 mA max |
Keys
| Key Style | Low-profile, island-style keys |
| Number Pad | Yes |
| Media Keys | Dedicated one-touch media keys |
| Spill Resistance | Spill-resistant design |
Power
| Batteries | 2 x AA (included) |
| Battery Life | Approx. 2 years in commercial use (varies with usage) |
| Battery Indicator | LED low-battery indicator |
| Power Switch | On/off switch |
Physical & Environment
| Dimensions (W x D x H) | Approx. 450 x 164 x 20 mm (17.71 x 6.46 x 0.79 in) |
| Weight | Approx. 700 g (1.54 lb) |
| Tilt | Adjustable tilt legs |
| Operating Temperature | 0 to 40 °C |
| Operating Humidity | 20% to 95% RH |
Compatibility & Fit
Needs a USB-A Port
The nano receiver plugs into a USB-A port. On USB-C-only laptops, use a USB-C hub, dock or adapter with a USB-A port.
US English Layout
This is the US English layout, the standard layout used in Singapore offices, with a horizontal Enter key and the US placement of symbols such as @ and ".
Battery-Powered, Not Rechargeable
This model runs on replaceable AA batteries. If you prefer a built-in rechargeable battery, see the Lenovo Professional Wireless Rechargeable Keyboard (4Y41K04031).
Package Contents & Lenovo Ordering Information
In the box:
- Lenovo Professional Wireless Keyboard
- USB nano receiver
- 2 x AA batteries
- Setup and warranty poster
Lenovo Keyboards Ordering Information
| 4Y41K04031 | Lenovo Professional Wireless Rechargeable Keyboard - US English |
| 4X30H56841 (this listing) | Lenovo Professional Wireless Keyboard - US English |
| 4Y41C33748 | Lenovo Go Wireless Split Keyboard - US English |
| 4Y41R64685 | Lenovo Smartcard Wired Keyboard II with Copilot key - US English |
| 4Y41R64588 | Lenovo Preferred Pro II USB Keyboard with Copilot key - US English |
| 4Y41R64633 | Lenovo Essential Wired Keyboard with Copilot key (Black) - US English |
Datasheet & Downloads
- Lenovo Support — Professional Wireless Keyboard product home
- Lenovo Accessories SmartFind — compatibility checker
Use Lenovo SmartFind to confirm compatibility with your PC, and Lenovo Support for manuals and any software updates.
Frequently Asked Questions — Lenovo Professional Wireless Keyboard
Does it use Bluetooth?
No. It connects over 2.4 GHz wireless using the included USB nano receiver.
What batteries does it take, and how long do they last?
Two AA batteries, included in the box. Lenovo quotes about two years of battery life in commercial use, depending on usage.
Does it have a number pad?
Yes. It is a full-size keyboard with an integrated number pad and one-touch media keys.
Is the wireless connection secure?
Yes. Lenovo specifies 128-bit AES encryption for the wireless link.
Is it spill resistant?
Yes, Lenovo describes a spill-resistant design. As with any keyboard, wipe up spills promptly.
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