The DA320 chassis resembles the previous version design from Shuttle, also seen with the XPC Slim Barebone DH310 back from 2018, with holes drilled into the top cover, right where the two cooling fans reside:

In the frontal area of the unit we do have the Microphone and Headphone jacks, the Power led indicator, the HDD/SSD storage indicator, the Power button, a SD Card reader but also no less than four USB 3.2 Gen 1 Type A ports:

On the sides we have got perforations for ventilation purposes but also screw holes for different mounting options; Kensington lock ports are also available here:

In the back we will note perforations for the optional wireless antennas, two COM ports supporting RS232, the DC-in jack port, two RJ45 Gigabit LAN ports, two USB 3.2 Gen 1 Type A ports, two USB 2.0 ports, two DisplayPort 1.2 ports, a HDMI 2.0 port but also a 4-pin connector for an external power button, Clear CMOS and 5V DC voltage output:

On the bottom area of the unit we will spot four small circular feet in order to operate the unit horizontally; a sticker with the product serial number is also present here:

The top cover can be removed with only two screws in the back, which means easy upgrades and maintenance! One thing to notice is that the top cover perforations do not sport an air filter:

On the inside of the chassis, we can spot two separate sections, one holding the cooling fans and the other having the 2.5’’ drive compartment, along with the SATA Data/Power cable:

The 2.5’’ drive tray can be removed with only one small screw:

By using the four spring-loaded screws from the cooling system, we can remove the entire solution from the AM4 socket: