What "Computer mm" Usually Means
The query "computer mm" most often refers to the millimetre (mm) dimensions of a computer — the physical size of a mini PC, industrial PC, thin client or all-in-one system. Buyers searching this way are typically trying to work out whether a machine will fit into a panel cutout, a DIN-rail cabinet, a kiosk enclosure or a tight desk footprint. Because "mm" is a unit of length, the practical answer is: computer size in mm depends entirely on the form factor, and the numbers vary enormously between a palm-sized mini PC and a 23.8-inch all-in-one.
Typical Computer Dimensions in mm by Form Factor
The table below shows the general size bands you can expect. Exact figures differ by model and by how many ports, serial headers or expansion slots are fitted, so always check the individual datasheet.
| Form Factor | Typical Footprint (W × D) | Typical Height | Notes |
|---|---|---|---|
| Mini PC | 100–200 mm × 100–200 mm | 25–60 mm | Often VESA-mountable behind a display |
| Industrial PC | 150–250 mm × 120–200 mm | 50–90 mm | Larger for serial ports, wide-voltage input, DIN rail |
| Thin Client | 100–180 mm × 100–150 mm | 25–50 mm | Small, low-power, centralised management |
| All-in-One PC | 490–560 mm × 150–200 mm (stand) | 300–400 mm | Screen dominates; 21.5" and 23.8" panels |
Two conventions matter when reading dimensions. First, manufacturers usually quote W × D × H without the stand, antenna or mounting bracket. Second, VESA mounting patterns are themselves given in mm — 75 × 75 mm and 100 × 100 mm are the common ones — which is why a mini PC measuring under 200 mm per side can usually be hidden completely behind a monitor.
Why Size Matters in Industrial Deployments
In factory, retail and infrastructure settings, the millimetre measurements are not cosmetic. A machine that is too deep will not close inside a control cabinet door; one that is too tall will foul a DIN rail above it; one without a fanless design will pull dust through its vents and require clearance for airflow. Fanless industrial PCs solve the airflow problem by using the chassis itself as a heatsink, which is why they can be sealed and mounted flat against a panel. Cable bend radius adds another 30–50 mm behind the unit, so a 150 mm deep PC realistically needs around 200 mm of cabinet depth.
Choosing by Measurement, Not Just by Spec
Start with the available space in mm, then match the form factor. If you have under 200 mm of depth and no forced ventilation, look at a fanless mini PC or industrial PC. If the machine must drive a screen in a public area with no separate monitor, an all-in-one at 21.5" or 23.8" removes the need for a second enclosure entirely. If the deployment is a call centre or a task-worker desk, a thin client at roughly 100–180 mm per side frees up desk space and centralises management. Also check the power adapter size and mounting holes, since a 12V adapter brick can be larger than the PC itself.
Thinvent's Range
Thinvent manufactures industrial computers, mini PCs, thin clients and all-in-one PCs built around these space and reliability constraints. The IPC3 industrial PC series pairs Intel® Core™ i3-1215U processors (6 cores, up to 4.4 GHz, 10 MB cache) with up to 16GB DDR4 RAM and 1TB SSD storage in a compact, fanless industrial chassis, with options for quad DB9 serial ports, wide-voltage 12V input and Windows 11 Pro, Windows 11 IoT, DOS or Thinux™ Embedded Linux. Alongside the IPC line, Thinvent's mini PCs and thin clients cover VESA-mountable, space-constrained deployments, while the all-in-one range integrates a display for kiosk and point-of-service use. Datasheets list exact dimensions in mm so you can confirm cabinet, panel and VESA fit before ordering.
