BACHMANN AI204/SI是一种具有2个PCI插槽或1个PCI和1个PCIe插槽的总线单元，插槽1滑入紧凑驱动器和1滑入驱动器，插槽2接口选项SDL/DVI/Monitor和DisplayPort接口，用于显示器/面板选项的插槽CFast槽，2槽位APC910系统单元。

It is a bus unit with 2 PCI slots or 1 PCI and 1 PCIe slot, slot 1 sliding in compact drive and 1 sliding in drive, slot 2 interface options SDL/DVI/Monitor and DisplayPort interfaces, slot CFast slot for display/panel options, and 2-slot APC910 system unit.