Keyboard PS2 A4Tech KAS-15MU Anion

The A4Tech KAS‑15MU is a wired keyboard that connects via a PS/2 port — the classic round‑plug connector many older or simpler PCs use. It has a full‑size layout with a full set of keys, and works right away when plugged in. Its keys are membrane-type, giving quiet, comfortable typing suitable for everyday office or home tasks. A special detail: it includes an “anion” feature, which the manufacturer advertises as a built‑in negative‑ion generator — meant to improve air quality around your workspace.