Passing somehow closer to the end of the summer past a rack in one of the data centers, I saw a box of 4-5 units in size, covered with something suspiciously resembling rust. The box turned out to be a mini server perhaps dediked hosting.
On the motherboard processor similar to Intel Atom with passive cooling, 2.5 "screws, network.
Photos under the cut.

White plastic with pins - power supply, at the same time and keeps them

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In one such box fits 9x4 = 36 platforms. The screws seemed to be 250 GB each.