oGet for Opera supports the following download managers.
Universal Share Downloader
BitComet
Download Master
FlashGet
Free Download Manager
FreshDownload
GetRight
GigaGet
HiDownload
InstantGet
Internet Download Accelerator
Internet Download Manager
LeechGet
Mass Downloader
NetAnts
Net Transport
Net Transport 2
Orbit
ReGet
Star Downloader
TrueDownloader
Thunder
WellGet
wxDownload Fast
Download Accelerator Plus
Just install it and enjoy.
You can download the latest version from here
To know more, you can read the article here
