Raspberry Pi PoE+ HAT: 65 × 56.5 mm board and M2.5 mounting holes on 58 × 49 mm — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/raspberry-pi-poe-plus-hat/  (sheet CC BY 4.0)
Basis: Raspberry Pi PoE+ HAT product brief (physical specification) and the Raspberry Pi HAT mechanical specification.
Catalog version: 2026-10-20

Overall (mm): length 65.0, width 56.5, height 1.6
- Datum: board centred on X and Y, bottom on z=0; the 40-pin GPIO header edge is +Y.
- Board 65.00 × 56.50 × 1.6 mm with R3.0 corners.
- Four Ø2.75 holes for M2.5 on 58.00 × 49.00 mm: 3.5 from the ±X and header edges, 4.0 from the −Y edge.
- For Raspberry Pi 3B+ and 4 Model B (4-pin PoE header).
- Not modelled: 25 × 25 mm fan, PoE transformer (18 mm wide), the 40-pin and 4-pin female headers underneath; their positions and heights are not dimensioned in the brief.
- Exact nominal mm.

hole  x (mm)  y (mm)  diameter (mm)
1  -29.0  24.75  2.75
2  29.0  24.75  2.75
3  -29.0  -24.25  2.75
4  29.0  -24.25  2.75

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Raspberry Pi: PoE+ HAT product brief (PDF) — web — Publisher's page; dimensions are facts — https://datasheets.raspberrypi.com/poe/poe-plus-hat-product-brief.pdf
- Raspberry Pi (GitHub): Raspberry Pi HAT mechanical specification — web — Publisher's page; dimensions are facts — https://github.com/raspberrypi/hats

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/raspberry-pi-poe-plus-hat/index.json
API: https://xemstudio.com/api/geometry?object=raspberry-pi-poe-plus-hat