Overview

The Logitech K120 is a straightforward wired keyboard that starts working the moment you plug it into a USB port. It pairs a full-size numeric keypad with a Japanese key layout, keeping the feature set deliberately simple. That makes it an easy first external keyboard or a dependable spare for an existing setup.
The keys use a low-profile shape intended to reduce strain on the wrists during long typing sessions. Each key is built to survive a 10-million keystroke test, so the design leans on durability for everyday input work rather than flashy extras.
A spill-resistant design adds peace of mind when a drink sits next to the desk. The tested condition involves 60ml of liquid, so this is protection against an accidental splash, not a license to submerge the keyboard.

Connectivity & Compatibility

Connection is USB only, which keeps setup simple. Plug the cable into a PC's USB port and the keyboard is ready, with no dedicated driver or pairing step. Supported operating systems are listed as Windows 10 and Windows 11 or later.
The Japanese layout and full-size body suit spreadsheet work, accounting tasks and Japanese text entry where a numeric keypad matters. It also works well as an external keyboard when a laptop's built-in keys feel cramped.
Because the link is wired, there is no battery to run down and no wireless dropouts to troubleshoot. The cable does stay on the desk, so plan the routing if your workspace is tight.

Product Info

On sale since March 2013, the K120 has stayed in the lineup as a long-running entry-level wired keyboard. Its modest price makes it an easy pick for a first external keyboard or a backup unit. A three-year manufacturer warranty is a reassuring extra at this tier.
Listed dimensions are 441 mm long, 149 mm wide and 19 mm high, with a weight of 550 g. The slim profile fits comfortably on a narrow desk.

Best Use Cases

  • Office and home users who need Japanese input plus a numeric keypad: the full-size Japanese layout and USB-only setup cover both without extra software, though anyone who needs portability should look elsewhere.
  • People whose wrists ache after typing on a laptop: the low-profile keys and durable key construction support longer sessions, while gamers chasing fast response and styling will find it plain.
  • Desks where drinks are common and a splash could happen: spill resistance and a low price make it easy to keep as a spare, as long as you understand it is not meant to be submerged.

Product Disclosure (Amazon)

  • Model: K120
  • ASIN: B00BJZ2JWC
  • Note: This article covers a manufacturer-made product based on Amazon listing details.