Questions about Lenovo ThinkCentre M90t Gen 5

This is because this product is intended for use in Germany. A fixed adapter must therefore also be used for the power connection.

Yes, you can install up to two 3.5" HDDs in this PC, as the manufacturer states that it supports up to five drives, including two 3.5" HDDs. Make sure that the HDDs from your old PC have the 3.5" format and use SATA connections.

According to the manufacturer, a DVD drive is already installed, here are the complete specifications of the device Lenovo ThinkCentre M90t Gen 5. The following drive is installed in this device: Lenovo OPT DRIVE HL GUE1N 9.0.