@comphys I am assuming it's not a common micro USB connector, like typically used in cell phones, right? Sometimes cameras have odd, proprietary connectors, requiring their own OEM cable.
@design_RG Casio, ZR1000, the docs just say "USB AV"... I've found some eBay items which say the same thing as you .
@comphys Search using the brand and exact model name and number then.
I would suggest looking at AliExpress, it will cost a lot less there.
@comphys Zoomed into it, som we get a close look - I think it's a proprietary connector. Samsung has some of those.
What's the camera brand?