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Lenovo Storm Gray split ergonomic keyboard, UV coated, RF wireless, two AA batteries

Lenovo

Lenovo 4Y41C33748 Storm Gray RF Wireless Split Keyboard

SKU CH-78TD-W226R MPN 4Y41C33748

Ergonomic split keyboard with vertical tenting and negative tilt for reduced strain, using 2.40 GHz RF wireless connectivity

  • Keyboard ColorStorm Gray
  • TypeRF Wireless
  • Dimensions1.89" x 18.23" x 10.04"
  • Mouse IncludedNo
  • Power Source2 AA Batteries
  • Operating System SupportedWindows 10 x64
  • Ergonomic split layout reduces forearm strain
  • Negative tilt and vertical tenting align posture
  • Storm Gray UV-coated finish resists daily wear
  • 40 GHz RF wireless link frees desk space
  • Runs on two AA batteries for cordless use

Ergonomic Split Layout

The Lenovo 4Y41C33748 is a Storm Gray RF wireless keyboard built with a split layout and integrated palm rest. Its ergonomic design uses vertical tenting and negative tilt to align wrists and forearms, targeting professionals who type for extended periods and want to reduce muscle strain.

Verify OS and Port Availability

This keyboard supports Windows 10 x64 and connects through a 2.40 GHz RF receiver that occupies one USB-A port. Confirm the operating system matches and that a spare port is available before ordering, because no mouse is included and no alternative wired connection exists.

Battery-Powered All-Day Use

Two AA batteries power the unit, so sustained operation depends on cell capacity rather than a recharge cycle. The UV-coated key surfaces resist wear during continuous typing sessions, while the fixed tenting angle keeps posture consistent without needing software adjustments.

Highlights

  • Ergonomic split layout reduces forearm strain
  • Negative tilt and vertical tenting align posture
  • Storm Gray UV-coated finish resists daily wear
  • 40 GHz RF wireless link frees desk space
  • Runs on two AA batteries for cordless use

Specifications

Keyboard ColorStorm Gray
TypeRF Wireless
Dimensions1.89" x 18.23" x 10.04"
BrandLenovo
Model4Y41C33748
Part Number4Y41C33748
Mouse IncludedNo
Power Source2 AA Batteries
Operating System SupportedWindows 10 x64
FeaturesErgonomic
Palm Rest
Split Layout
UV Coated
Shipping weight1.63 kg
Package size470 × 290 × 76 mm

Questions about this item

Does the keyboard ship with a mouse or palm rest, or do I need to buy them separately?

The box contains the split keyboard only; no mouse is included and the palm rest is integrated into the design rather than a separate accessory.

The specs list RF Wireless at 2.40 GHz and USB wired options — which should I choose?

This model uses a 2.40 GHz RF wireless link via its USB dongle; there is no wired or Bluetooth variant to select.

What does the 1.89" height and 10° tenting angle mean for daily typing comfort?

The low 1.89" profile combined with the built-in negative tilt and vertical tenting keeps wrists in a neutral posture during long sessions.

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