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# Node
A node is a machine in the Cluster, this includes control-plane and compute nodes. In the current setup these are the same, there is the possibility, that they will become more divers in the long run.
## Parts
|Part | Type | Reasoning |
|-----|------|-----------|
|["Lenovo ThinkCentre M75q Gen 2"](https://www.lenovo.com/us/en/p/desktops/thinkcentre/m-series-tiny/thinkcentre-m75q-gen-2/11tc1mtm7g2)|CPU, RAM, board, NVMe, Chassis, power supply, …|These machines, are quite powerful, have a low energy footprint, are easy to maintain and are relatively quiet. **Note**: There is a AMD Ryzen 4xxx and a 5xxx variant of this device, I highly recommend to get the 5xxx series.|
|[Crucial 3200MHz DDR4 Memory](https://www.crucial.com/memory/ddr4/ct16g4sfra32a)|RAM|The M75q already comes with 16GB of DDR4 memory pre-installed, an additional 16GB Stick provides a total of 32GB of RAM and switches RAM into dual channel mode.|
|[Crucial mx500 2TB SATA-SSD](https://www.crucial.com/ssd/mx500/ct2000mx500ssd1)|SSD|In order to provide storage within the cluster, some additional NVMe Space in combination with a CSI is very useful.|
## Setup
In order to setup the device, install the additional RAM in the underside of the device and the SSD in the 2.5" bay.
<iframe width="100%" height="480" src="https://www.youtube-nocookie.com/embed/M1EL8yYe_0s?start=292" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
[Hardware Maintaince Guide](https://download.lenovo.com/pccbbs/thinkcentre_pdf/m75q_gen2_hmm.pdf)
In my usage of these machines, my tests resulted in a power-usage of 20W on average, however, they can peak notably higher, when full performance is required. Given they run on a 65W power supply, there is this "natural" limit.