Lenovo · Keyboard

Lenovo 4X31K03957 Keyboard

Membrane · Full-size · Wireless

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Type Membrane
Layout Full-size
Connection Wireless

Lenovo 4X31K03957 Keyboard is a wireless keyboard (membrane and Full-size). It came out in 2023.

Released: 2023-08-04

Specifications

Key specs

Type: Membrane
Layout: Full-size
Connection: Wireless
Released: 2023-08-04
Part number: 4X31K03957

Keyboard

Connectivity technology: Wireless
Device interface: RF Wireless + Bluetooth
Keyboard key switch: Scissor key switch
Keyboard language: Portuguese
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

Product colour: Grey

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Features

Cable length: 1 m
Detachable cable: Yes
Number of devices supported: 3

Power

Power source type: Battery
Keyboard battery type: Built-in battery
Rechargeable: Yes
Battery recharge time: 2 h
Charging source: USB Type-C

Battery

Battery technology: Lithium-Ion (Li-Ion)
Battery capacity: 420 mAh

Mouse

Mouse included: Yes
Form factor: Ambidextrous
Movement detection technology: Optical
Movement resolution: 4000 DPI
Buttons quantity: 8
Scroll: Yes
Scroll type: Wheel
Programmable mouse buttons: Yes
Mouse battery type: Built-in battery
Mouse battery technology: Lithium-Ion (Li-Ion)
Mouse battery capacity: 380 mAh
Mouse keys operating life: 10 million characters
Rubber grips: Yes

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 features scissor switches that create an elevated typing experience. Its mouse, marvelouslly crafted from bio-rubber, keeps you comfortable all day and is equipped with an impressive 4,000 DPI sensor. Plus, both the keyboard and mouse are made from eco-friendly 65% recycled material that protects the environment.