Excellent implementation for Raspberry, it transfers all the ports to one side (back) and fixes inherent design issues of Raspberry. Perhaps the best case available, although with a few small imperfections, such as the thermal pads that do not allow for many assemblies/disassemblies. Highly recommended for use in a Bitcoin Node (on Umbrel, and without a script to operate the fan, meaning with completely passive cooling), definitely together with the NVMe expansion board (https://argon40.com/products/argon-one-m-2-expansion-board-nvme)

1) Great attention should be paid to the installation of the daughter board. The audio jack is difficult to insert, resulting in excessive pressure on the remaining connectors.

2) The WLAN connection is unstable (frequent disconnections) with the built-in NIC of the RPI due to its metallic construction. It requires either placement near the access point or an external network adapter.

3) The thermal pads are unacceptable. They deteriorated after a few days of use. I replaced them with artic-mx4 (constant 30°C with heavy usage).

4) A real disappointment for a fan. After a week of continuous operation, it suddenly makes a noise like a drill... After disassembly, I discovered that the plastic blades rub against the base (internally) due to the almost zero distance between them... I will have to replace it with a decent Sunon fan. (For those interested: 30x30x10mm / 5V)

Other than that, the assembly and installation of the proprietary script for fan speed/shutdown/reboot are easy.

Additionally, the ability to receive IR signals is welcome, although personally, I didn't need it, and the easy access to the labeled GPIO pins under the magnetic cover is convenient.