The IGEL 4210LX has a standard PC Phoenix Award BIOS - hit the DEL key repeatedly on power-up
in order get into the BIOS setup screens. The BIOS boot options are:
LS120
HDD-0
SCSI
CDROM
HDD-1
HDD-2
HDD-3
ZIP100
USB-FDD
USB-ZIP
USB-CDROM
USB-HDD
LAN
Disabled
Igel Linux
The unit runs IGEL's build of Linux. I haven't explored this.