Lenovo 4X31K03940 Keyboard & Mouse Set

Wireless · Full-size · 4000 DPI

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Connection Wireless
Layout Full-size
Max sensitivity 4000 DPI

Lenovo 4X31K03940 Keyboard & Mouse Set is a wireless keyboard and mouse set. One box and one receiver: an easy pick for a new PC or a work desk. It came out in 2023.

Released: 2023-08-07

Specifications

Key specs

Connection: Wireless
Layout: Full-size
Max sensitivity: 4000 DPI
Released: 2023-08-07
Part number: 4X31K03940
EAN / UPC: 0195892062813

Keyboard

Connectivity technology: Wireless
Device interface: RF Wireless + Bluetooth
Keyboard key switch: Scissor key switch
Keyboard language: Danish
Keyboard form factor: Full-size (100%)
Numeric keypad: Yes
Keyboard keys operating life: 10 million characters
Windows keys: Yes
Programmable hot keys: Yes
Bluetooth Low Energy (BLE): Yes
Security algorithms: 128-bit AES
Certification: CE CB BQB TUV Mark cTUVus FCC IC IDA WPC BIS SIRIM NTA SDOCo SDPPI NTC MIC AITI RCM NCC BSMI MSIP VCCI JRF SRRC ANRCETI ICASA MINCOM STA MoC UkrSEPRO ACI FAC TRA NTRA TRC MOC ICT INACOM NCC ANRT CERT CNC/AFTIC ANATEL SUBTEL IFETEL TUV NOM

Design

Keyboard style: Straight
Adjustable keyboard height: Yes
Product colour: Black

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Features

Retractable cable: Yes
Number of devices supported: 3

Power

Power source type: Battery
Charging source: USB Type-C

Battery

Battery capacity: 420 mAh

Mouse

Mouse included: Yes
Form factor: Ambidextrous
Movement detection technology: Optical
Movement resolution: 4000 DPI
Buttons quantity: 8
Buttons type: Pressed buttons
Scroll: Yes
Scroll type: Wheel
Mouse battery type: Built-in battery
Buttons durability (million clicks): 10

Operational conditions

Operating temperature (T-T): 0 - 40 °C
Operating relative humidity (H-H): 20 - 95%

Weight & dimensions

Keyboard dimensions (WxDxH): 437.4 x 128.8 x 14.8 mm
Keyboard weight: 586 g
Mouse dimensions (WxDxH): 111.29 x 62.23 x 36.06 mm
Mouse weight: 80 g

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About this product

The Lenovo Professional Wireless Rechargeable Combo Keyboard and Mouse is a revolution in productivity and design. Its full-size keyboard sports scissor switches that create an elevated typing experience. Its mouse marvellously crafted from bio-rubber keeps you comfortable all day, and sports an impressive 4,000 DPI range. Plus, both the keyboard and mouse are made from eco-friendly 65% recycled material that protects the environment.

4X31K03940 vs similar keyboard & mouse combos

	Lenovo 4X31K03940 Keyboard & Mouse Set	Lenovo GX31S04968 Keyboard & Mouse Set	Lenovo 4X31S04836 Keyboard & Mouse Set	Lenovo GX31S04978 Keyboard & Mouse Set
Connection	Wireless	Wireless	Wireless	Wireless
Layout	Full-size	Full-size	Full-size	Full-size
Max sensitivity	4000 DPI	4000 DPI	4000 DPI	4000 DPI
Released	2023	2026	2026	2025