LMP Large Font USB Keyboard (ISO) Windows

KB-3421-BIG, 110 key large font USB keyboard with 2x USB ports and aluminum upper cover.

Key features
  • Large Font Keyboard for people with impaired vision
  • Wired USB keyboard for Windows with 110 keys (ISO)
  • 2x USB hub for low-energy peripherals
  • Aluminum upper cover
  • Laser-engraved keycaps
  • For all Windows PC with a USB-A port
  • Gaming features: 4 media hot-keys, WASD keys activation


The LMP Large Font USB Keyboard KB-3421-BIG has been specially designed for people with impaired eye vision. The size of the letters and numbers has been increased by up to 400%, thus greatly facilitating typing for sight impaired persons.

This robust USB keyboard in 3-zone layout with 110 keys (ISO) and a cover made out of anodized aluminum has a numeric keypad. The characters are laser engraved with a large font wich feels pleasant on the fingertips. The keys feature a traditional key stroke. Even a lengthy typing session can be done comfortably thanks to the high reactivity and precision. The elegant design integrates the keyboard seamlessly into any desktop environment.

The two USB ports on each side of the keyboard allow convenient operation of USB devices with low power consumption (e.g. USB mouse or USB flash memory).

KB-3421-BIG can be connected to any Windows PC with a free USB-A port. It comes in two stylish color variants: silver/white and space gray/black. Any language layout is doable on request.

Technical specifications

Connection type 1x USB-A 2.0
Data ports 2x USB-A 2.0 (up to 480 Mbps)
Keyboard layout CH
Color Space Gray
Material ABS keycaps and buttom cover
Aluminum upper cover
Product dimensions (W x H x D) 42.8 x 1.7 x 11.3 cm
Product weight 480 gr
Package dimensions (W x H x D) 47 x 14 x 3 cm
Package weight 615 gr