Lantisri 9V Power Adapter fit for Casio Keyboard AD-5 AD-5MU WK-110 WK-200 LK-43 LK-100 CT-360 CTK-496 CTK-573 CTK-611 CTK-700 CTK-710 CTK-2100 CasioTone Piano Keyboard Power Supply Cord

I tested this adapter out on my Casio CTK-710 from 2006, and it works perfectly. Comes with three converters for different size plugs, I had to use the biggest one.

I bought this for a Casio keyboard I gave to my grand daughter that had to use batteries. Now she can plug it in. It also works for a portable guitar amp that I got her.

Worked for portable piano

Lost the original plug in adapter for my keyboard so I purchased this one in hopes it wold fit and sure enough, it is a perfect fit and keyboard is working again. Good product 👌 very pleased

If buying for CTK-511 a/OR to replace 6 D batteries, it does work. 3 joints included to find best fit, plus option to plug standard joint directly into port- so that's 4 total fittings. Fit is a little loose, so that's why 4 stars, but no evidence loose fit impacts function. Also, would be nice if cord a bit longer, but you could get an extension cord. Happy playing.