This configuration includes an AOpen H420B Micro ATX tower with a 300W power supply, a Sam440Flex motherboard with an accelerated 512MB memory module at 147Mhz and a 733Mhz processor, a Radeon 9250 128MB graphic card, a 250GB 3''1/2 sata harddrive, a sata dvd writer and the new AmigaOS 4.1 especially developped for this board and also the Linux Debian distribution pre-installed in dual boot !