ET9X00
The Xtrend ET9x00 is a twin tuner Enigma2 box very similair to a Dreambox.
The ET9x00 family currently consist of the ET9000, ET9100, ET9200 and ET9500.
To make a ET9x00 compatible with OpenPLi you have to upgrade the Bootloader
The official (German) Xtrend wiki is not available anymore but a good alternative is, (in Dutch),
De_Transponder.
If the USB stick is FAT32 formatted, with the installation directory in the root, and the ET9X00 ignores it at boot-time, holding the up arrowkey during boot might work.
Manufacturer
The ET boxes where previously produced by Clark-Tech, now known as Xtrend.Webbrowser
A big extra of the ET9x00 boxes that a webbrowser plugin can be added.The ET Portal plugin is a interface to browser different functions of the ET box.
The ET Weblinks plugin is a graphical interface for bookmarked websites, HBBTV sites and internet streams.
The Webbrowser allows playing of RTMP streams (renaming RTSP to RTMP normally works).