Log in / register My Account
$0.00
Adesso

Adesso Tru-Form 3500 - 2.4GHz Wireless Ergonomic Trackball Keyboard

$99.99
$79.99 SAVE $20.00
32 availableas of 09/19/2026

Order within for shipment today

Should arrive by Thu, Oct 1 with free ground shipping

Country of origin

  • Origin: China
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Protect this device

Plans are optional and can be left off. Your order is unchanged unless you add one.

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

View user manual
Wireless Technology

Works up to 30 feet of wireless distance. Operates on 12 different channels, each with 65,536 different IDs.

Desktop full size

Full size keyboard provides better typing experience.

Ergonomic Contour Design

Minimizes forearm muscles from twisting and pains from Carpal Tunnel Syndrome.

Split Key Design

Encourages natural position of hands, wrists and forearms for maximum comfort.

Integrated Palm Rest

Keeps your wrists in the most comfortable position.

Built-in Trackball with Optical Sensor

Tracks accurately and precisely with less muscle movement for maximum comfort.

Multi-Media Hotkeys

Provide ease of access to some of the most used functions.

Membrane Switch

5 Million keystroke lifecycle for a quiet and fast typing experience.

Auto Sleep and Power On/Off Switch

Maximizes your battery life up to 6 months.

Wireless Receiver

Small and convenient to plug into to your laptop or tablet.

More from the manufacturer

Technical specifications

General Information

Manufacturer Adesso, Inc
Manufacturer Part Number WKB-3500UB
Manufacturer Website Address http://www.adesso.com
Brand Name Adesso
Product Line Tru-Form
Product Model WKB-3500UB
Product Name 2.4 GHz Wireless Ergonomic Trackball Keyboard
Product Type Keyboard

Keyboard/Keypad

Keyswitch Technology Membrane
Keyboard / Keypad Connectivity Technology Wireless
Keyboard / Keypad Wireless Technology RF
Keyboard / Keypad Wireless Operating Distance 30 ft
Wireless Operating Frequency 2.40 GHz
Number of Keys 105
Keyboard / Keypad Features Split Layout
Hot Keys Previous TrackSearchWake-upVolume UpMuteCalculatorMusicPowerEjectBackNext TrackRefreshForwardPlay/PauseMy ComputerSleepVolume DownEmailHome
Keys Layout QWERTY
Localization English (US)

Pointing Device

Pointing Device Type Trackball

Interfaces/Ports

Keyboard / Keypad Host Interface USB

Battery Information

Battery Included Yes

Physical Characteristics

Color Family Black
Product Color Black
Keyboard / Keypad Height 1.50"
Keyboard / Keypad Width 20.50"
Keyboard / Keypad Depth 9.30"
Keyboard / Keypad Length 20.50"
Weight (Approximate) 2 lb

Miscellaneous

Package Contents
  • 2.4 GHz Wireless Ergonomic Trackball Keyboard
  • Micro USB Wireless Receiver
  • 2 x AAA Batteries
  • Quickstart Guide
Green Compliant Yes
Country of Origin China

Warranty

Limited Warranty 1 Year

Ratings and reviews

Do you own the Adesso Tru-Form WKB-3500UB?

Be the first to write a review.

Displaying 1-10 of 70

Similar products you might also like

Keyboards & Keypads

Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.