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Black compact AC adapter with thick cable and barrel tip

OnlineHawk

OnlineHawk 9V 1A AC Adapter for Casio CTK-451 CTK-571 CTK-810 LK-300TV LK-220

SKU CH-045P-1VYS4

A 9 V 1 A AC adapter with a 10 mm tip that powers Casio CTK‑451, CTK‑571, CTK‑810, LK‑220 and LK‑300TV keyboards from 100‑240 V mains

  • Battery TypeLithium-Ion
  • Powers five Casio keyboards with one adapter
  • Worldwide 100-240V input suits any mains supply
  • Stable 9V 1A output keeps instruments running safely
  • Built-in IC and fuse guard against shorts and over-charge
  • Lightweight design with 10mm tip plugs in easily

Direct Replacement Power Supply

This 9V 1A AC adapter is built as a direct replacement for Casio CTK-451 CTK-571 CTK-810 LK-300TV LK-220 keyboards. It accepts a wide AC 100-240V input at 50-60Hz and delivers a steady DC 9V 1A output. The 10mm tip ensures a secure connection for the listed models. Musicians needing a reliable spare or original unit will find it matches the factory requirement.

Protected Low Heat Operation

Built-in dynamic IC charger IC and power fuse provide short circuit protection and over charge protection during normal use. The adapter runs cool and draws only the current required by the keyboard. Its light weight and heavy duty cable wire resist wear without adding bulk. No fan or moving parts mean silent operation in practice rooms or on stage.

Travel Ready Single Cable Solution

The unit integrates the transformer and cable into one piece so there is no separate brick to pack. It plugs straight into any 100-240V mains outlet worldwide at 50-60Hz. The 10mm barrel tip fits the five compatible Casio keyboards without an extra connector. Players who need a second adapter for a different venue can carry this single cord and leave the original at home.

Highlights

  • Powers five Casio keyboards with one adapter
  • Worldwide 100-240V input suits any mains supply
  • Stable 9V 1A output keeps instruments running safely
  • Built-in IC and fuse guard against shorts and over-charge
  • Lightweight design with 10mm tip plugs in easily

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the adapter and what step do users often miss?

Plug the barrel tip fully into the keyboard's DC jack until it clicks; the 10 mm tip must seat completely or the CTK-451 will not power on.

What part will need replacement after extended use?

The heavy-duty cable and barrel connector are the wear items; the internal fuse and IC protection are non-replaceable.

What limit appears first during continuous operation?

The 1 A current ceiling; sustained draw at 9 V 1 A triggers the built-in short-circuit and over-charge protection.

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