You can install a cdrom drive in one of the 5.25 inch bays and attach it to the motherboard and power, but you cannot use one in the TT Dokker external dock for 3.5 and 2.5 inch HDDs.
You can install a cdrom drive in one of the 5.25 inch bays and attach it to the motherboard and power, but you cannot use one in the TT Dokker external dock for 3.5 and 2.5 inch HDDs.