Arduino UNO R4 WiFi (ABX00087): board outline, mounting holes and header rows — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/arduino-uno-r4-wifi/  (sheet CC BY 4.0)
Basis: Arduino UNO R4 WiFi datasheet ABX00087, section 13 'Mounting Holes And Board Outline' (page 19).
Catalog version: 2026-10-20

Overall (mm): length 68.58, width 53.34, height 10.1
- Datum for the table: board corner at the USB-C edge and power/analog header edge (x along the long side, y across). Board 68.58 × 53.34 × 1.6.
- Outline: main right edge at 66.04 with a 2.54 tab to 68.58 between y 5.08 and 38.10, joined by 45° chamfers (standard UNO shape).
- Four Ø3.2 holes in the standard UNO pattern (table), the same positions as the UNO R3.
- Header rows 8.5 tall above the board, 2.5 deep, 1.3 in from the long edges: digital row x 17.29 to 65.02, power/analog row x 26.42 to 65.02.
- Not modelled: USB-C (its top edge 11.01 below the digital-header edge, 3 tall), DC barrel jack, Qwiic connector, ICSP header, ESP32-S3 module and LED matrix; leave clearance for them.
- Dimensions are exact nominal (true size), no tolerance added.

hole  x (mm)  y (mm)  Ø (mm)
1  13.97  2.54  3.2
2  15.24  50.80  3.2
3  66.04  7.62  3.2
4  66.04  35.56  3.2

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Arduino: UNO R4 WiFi datasheet (ABX00087) — web — Publisher's page; dimensions are facts — https://docs.arduino.cc/resources/datasheets/ABX00087-datasheet.pdf
- Arduino: UNO R4 WiFi documentation — web — Publisher's page; dimensions are facts — https://docs.arduino.cc/hardware/uno-r4-wifi/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/arduino-uno-r4-wifi/index.json
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