Replacing 5.25 inch ODD (RO) with a dual layer DVD burner

I got a Dell Precision 580 tower in August 2022.  I upgraded from Windows 10 Pro64 to Windows 11 Pro64 yesterday.  That went smoothly.  I wanted to create installation media for clean install, so I got an LG 5.25" dual layer DVD burner to replace the full height DVD (429-ABDTthat came with the tower.  The existing connector in the original full height DVD is not quite  a standard SATA socket.  It appears to be a 15 pin plus a 5 pin - separate cables.  The LG dual layer burner is 15 pin plus 7 pin and can't detect a DVD.  Is there an adapter I can get for this - I spotted a query in this community site that mentioned an adapter needed for adding a slim-optical disk drive to a 5820 tower that didn't have any optical devices.

Thanks.