{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "thundercomm-rubik-pi-3",
 "name": "Thundercomm RUBIK Pi 3 (Qualcomm QCS6490): board outline, 8 mounting holes and connector positions",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Single-board computers",
 "year": null,
 "question": "What are the Thundercomm RUBIK Pi 3 dimensions, mounting holes and connector positions?",
 "tags": [
  "rubik pi 3",
  "thundercomm rubik",
  "rubik pi 3 dimensions",
  "qcs6490 sbc",
  "sbc mounting holes",
  "rubik pi case"
 ],
 "aliases": [
  "Thundercomm RUBIK Pi 3",
  "rubik pi 3",
  "thundercomm rubik",
  "RUBIK Pi",
  "Qualcomm RUBIK Pi 3",
  "QCS6490 single board computer",
  "RUBIK Pi 3 mounting holes",
  "RUBIKPI-03"
 ],
 "overall_mm": {
  "length": 100,
  "width": 78.89,
  "height": 24.71
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/thundercomm-rubik-pi-3/",
 "sheet_txt": "https://xemstudio.com/objects/thundercomm-rubik-pi-3/sheet.txt",
 "sheet": {
  "basis": "Thundercomm RUBIK Pi 3 Datasheet V1.2.3 (section 2.4, Figure 2-4) and Thundercomm's official RUBIK Pi 3 3D model.",
  "overall_mm": {
   "length": 100,
   "width": 78.89,
   "height": 24.71
  },
  "notes": [
   "Datum: lower-left board corner, I/O edge (all front connectors) along y=0, 40-pin header along the far edge. PCB 100.0 × 75.0, R4 corners, 1.55 thick.",
   "Six Ø2.70 mounting holes (table); four of them form a 58.0 × 49.0 rectangle, the same spacing as the Raspberry Pi B pattern. Two further Ø3.00 holes at (4, 28.5) and (62, 65.5).",
   "Front connectors overhang the I/O edge by up to 3.89 (78.89 overall). Tallest part is the dual USB-A stack, 16.4 above the board top.",
   "The board underside sits 6.75 above the lowest point: the M.2 Key-M socket and SSD standoff hang below the board.",
   "Modelled: PCB, holes, USB-A, USB-C, HDMI, RJ45, audio jack, 40-pin header, SoC shield, M.2 socket and standoff. Not modelled: FPC connectors, buttons, LEDs and pin tails.",
   "All dimensions are exact nominal millimetres, true size, with no tolerance added."
  ],
  "table": {
   "columns": [
    "hole",
    "x (mm)",
    "y (mm)",
    "diameter (mm)"
   ],
   "rows": [
    [
     "1",
     "4.0",
     "22.5",
     "2.70"
    ],
    [
     "2",
     "4.0",
     "71.5",
     "2.70"
    ],
    [
     "3",
     "62.0",
     "22.5",
     "2.70"
    ],
    [
     "4",
     "62.0",
     "71.5",
     "2.70"
    ],
    [
     "5",
     "96.5",
     "3.5",
     "2.70"
    ],
    [
     "6",
     "96.5",
     "71.5",
     "2.70"
    ],
    [
     "7",
     "4.0",
     "28.5",
     "3.00"
    ],
    [
     "8",
     "62.0",
     "65.5",
     "3.00"
    ]
   ]
  }
 },
 "sheet_text": "Thundercomm RUBIK Pi 3 (Qualcomm QCS6490): board outline, 8 mounting holes and connector positions — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/thundercomm-rubik-pi-3/  (sheet CC BY 4.0)\nBasis: Thundercomm RUBIK Pi 3 Datasheet V1.2.3 (section 2.4, Figure 2-4) and Thundercomm's official RUBIK Pi 3 3D model.\nCatalog version: 2026-10-20\n\nOverall (mm): length 100.0, width 78.89, height 24.71\n- Datum: lower-left board corner, I/O edge (all front connectors) along y=0, 40-pin header along the far edge. PCB 100.0 × 75.0, R4 corners, 1.55 thick.\n- Six Ø2.70 mounting holes (table); four of them form a 58.0 × 49.0 rectangle, the same spacing as the Raspberry Pi B pattern. Two further Ø3.00 holes at (4, 28.5) and (62, 65.5).\n- Front connectors overhang the I/O edge by up to 3.89 (78.89 overall). Tallest part is the dual USB-A stack, 16.4 above the board top.\n- The board underside sits 6.75 above the lowest point: the M.2 Key-M socket and SSD standoff hang below the board.\n- Modelled: PCB, holes, USB-A, USB-C, HDMI, RJ45, audio jack, 40-pin header, SoC shield, M.2 socket and standoff. Not modelled: FPC connectors, buttons, LEDs and pin tails.\n- All dimensions are exact nominal millimetres, true size, with no tolerance added.\n\nhole  x (mm)  y (mm)  diameter (mm)\n1  4.0  22.5  2.70\n2  4.0  71.5  2.70\n3  62.0  22.5  2.70\n4  62.0  71.5  2.70\n5  96.5  3.5  2.70\n6  96.5  71.5  2.70\n7  4.0  28.5  3.00\n8  62.0  65.5  3.00\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Thundercomm: About RUBIK Pi 3 (documentation) — web — Publisher's page; dimensions are facts — https://www.thundercomm.com/rubik-pi-3/en/docs/about-rubikpi/\n- Thundercomm: RUBIK Pi 3 product page — web — Publisher's page; dimensions are facts — https://thundercomm.com/rubik-pi-3/en/\n- Edge Impulse: Thundercomm RUBIK Pi 3 board documentation — web — Publisher's page; dimensions are facts — https://docs.edgeimpulse.com/hardware/boards/thundercomm-rubikpi3\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/thundercomm-rubik-pi-3/index.json\nAPI: https://xemstudio.com/api/geometry?object=thundercomm-rubik-pi-3\n",
 "sources": [
  {
   "publisher": "Thundercomm",
   "title": "About RUBIK Pi 3 (documentation)",
   "url": "https://www.thundercomm.com/rubik-pi-3/en/docs/about-rubikpi/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Thundercomm",
   "title": "RUBIK Pi 3 product page",
   "url": "https://thundercomm.com/rubik-pi-3/en/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Edge Impulse",
   "title": "Thundercomm RUBIK Pi 3 board documentation",
   "url": "https://docs.edgeimpulse.com/hardware/boards/thundercomm-rubikpi3",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "raspberry-pi-5",
  "raspberry-pi-4-b",
  "jetson-orin-nano-devkit",
  "threaded-standoffs-metric",
  "m-2-2280-ssd",
  "pin-headers-2.54mm"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "Mounting holes",
   "exact": "6 × Ø2.70, incl. a 58.0 × 49.0 rectangle",
   "mates": "M2.5 standoffs in a case or base plate",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "I/O edge cut-outs",
   "exact": "connectors overhang the edge by up to 3.89, top 24.71 above the lowest point",
   "mates": "case front panel openings",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "How big is the RUBIK Pi 3?",
   "a": "The PCB is 100 × 75 mm with R4 corners; overall 100 × 78.89 × 24.71 mm including connector overhang and the M.2 socket underneath."
  },
  {
   "q": "Does the RUBIK Pi 3 fit Raspberry Pi standoffs?",
   "a": "Four of its Ø2.70 holes form a 58 × 49 mm rectangle, the same spacing as the Raspberry Pi B pattern; it has two more Ø2.70 holes at x=96.5."
  },
  {
   "q": "What is under the RUBIK Pi 3?",
   "a": "An M.2 Key-M socket and SSD standoff: the board underside is 6.75 mm above the lowest point."
  }
 ],
 "files_license": null,
 "offers": [
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   "file": "thundercomm-rubik-pi-3",
   "formats": [
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/thundercomm-rubik-pi-3/thundercomm-rubik-pi-3.step",
   "stl": "https://xemstudio.com/files/hardware/thundercomm-rubik-pi-3/thundercomm-rubik-pi-3.stl",
   "note": "Thundercomm RUBIK Pi 3 (Qualcomm QCS6490): board outline, 8 mounting holes and connector positions"
  }
 ],
 "markdown": "https://xemstudio.com/objects/thundercomm-rubik-pi-3/index.md"
}