I need a PC with DVD-ROM for my business.

ZOTAC mini PCs have multi-card-reader. Because of the size of the mini PC, it is not possible to have an internal DVD-ROM. You can consider using an external USB DVD-ROM. If you prefer to have the DVD-ROM built into the PC, we can custom build a PC with standard ATX chassis, Intel desktop CPU (Core i3/i5/i7) and configured to suit your requirement.