TIE/sa Bomber is a standard bomber of the Galactic empire. The overall look might be the same for a decade but the interior is changed over time. And the hull for the later model is much thicker than the first version.

TIE Bomber cassis is still be used as a base design of many TIE variants, such as TIE Shuttle, TIE Advanced bomber, TIE Punisher, and much more.