Overview

The Buffalo BSKBU345BK is a wired USB keyboard built around quiet operation. It uses a full-size 109-key Japanese layout and connects through a plain USB Type-A port, so there is no pairing step and no receiver to keep track of. Plug it in and it works.
Keystroke noise is held below 35db, which makes the board a reasonable choice for rooms where sound carries. The keys travel fairly deep and the spacing between them is generous, so long typing sessions do not force your fingers into a cramped position. A folding stand lets you tilt the board to a comfortable angle.
Physically it measures 438 mm long, 130 mm wide and 30 mm tall, with a weight of 510 g. This is a desk-bound full-size keyboard rather than something you would carry around.

Connectivity & Compatibility

Connection is wired USB Type-A. The keyboard is recognized as soon as it is plugged in, with no pairing routine or battery management involved. That suits anyone who would rather not deal with dropped wireless links mid-session.
The layout is Japanese 109-key, aimed at users who already work in a JIS environment and want their usual punctuation and shortcut positions to stay put.
Because the interface is standard USB Type-A, the host device matters little as long as it has the right port. Desktop towers are the obvious match, and notebooks or docking stations with a Type-A port can drive it as well. There is no Bluetooth here, so anyone hoping to clear cable clutter from the desk will need to look elsewhere.

Product Info

The BSKBU345BK went on sale on May 6, 2025, and sits in the entry-level price bracket. Buffalo has kept the feature set narrow: quiet keys, a Japanese layout and a wired connection, without the extras or styling of premium boards. That focus is exactly what makes it a sensible first external keyboard or a straightforward answer for someone who simply wants to type more softly.

Best Use Cases

  • People working late at night or early in the morning at home: the sub-35db design eases the noise burden, though anyone chasing mechanical switch feel will find it underwhelming.
  • Notebook users tired of shallow laptop keys: the deeper travel, roomy key pitch and adjustable stand support longer sessions, but the footprint is too large for anyone who needs to carry it around.
  • Users who want to avoid wireless troubleshooting: the plug-and-play USB Type-A connection needs no setup, while cable-averse desks should skip it.

Product Disclosure (Amazon)

  • Model: BSKBU345BK
  • ASIN: B0F3CMZJHK
  • Note: This article covers a manufacturer-made product based on Amazon listing details.