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Amazon.com: 9V AC/DC Adapter Charger Cord for Casio CTK-411 CTK 411 Keyboard Replacement Power Supply Adaptor : Musical Instruments
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Vintage Casio CTK-411 Keyboard Synth, Works but Has Quirks So Sold As Is! Great For Circuit Bending! | Reverb
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HQRP AC Adapter / Power Supply for Casio CTK-401 / CTK401 / CTK-411 / CTK411 Keyboards Replacement - Walmart.com
![Vintage Casio CTK-411 Keyboard Synth, Works but Has Quirks So Sold As Is! Great For Circuit Bending! | Reverb Vintage Casio CTK-411 Keyboard Synth, Works but Has Quirks So Sold As Is! Great For Circuit Bending! | Reverb](https://rvb-img.reverb.com/image/upload/s--1G4Cv3Ix--/a_exif,c_limit,e_unsharp_mask:80,f_auto,fl_progressive,g_south,h_620,q_90,w_620/v1490076240/umnviul9vs1n4mowxrmd.jpg)