Keyboards

Adesso Tru-Form 3500 WKB-3500UB

A full-size 105-key wireless membrane keyboard with a split-key contoured layout, integrated palm rest and built-in trackball, connecting through a 2.4 GHz USB receiver.

Key specs auto-matched against source pages · Last verified: 2026-10-17

Adesso Tru-Form 3500 WKB-3500UB
Image: © Adesso (Manufacturer image)
~$99.99

Where to buy

View at AdessoView at StaplesView at SHIView at OfficeCraveView at Zies TechOfficial site

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Pros

  • Built-in optical trackball removes the need for a separate mouse
  • Split-key contour with integrated palm rest
  • Full-size layout with numeric keypad and 20 hotkeys
  • Runs on two AAA batteries with up to 6 months of battery life claimed

Cons

  • Membrane switches, not hot-swappable
  • Only Windows is listed as supported
  • Large footprint at 521 mm wide
  • No Bluetooth; needs the USB receiver

Specs

SplitUnibody split
StaggerRow-staggered
TentingNone
KeywellNo
Thumb clusterNo
Keys105
LayoutsUS
SwitchesMembrane
Hot-swapNo
FirmwareProprietary
DIY kitNo
ConnectivityUSB receiver
OSwindows
Released—
Sources
AD · detail-mid

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