Motherboards by form factor
The form factor is the physical size of the board, and it has to match your case. Smaller boards have fewer slots; they are not always cheaper.
| Form factor | Boards | Price |
|---|---|---|
| E-ATX motherboardsE-ATX boards are wider than standard ATX, typically 305 mm tall and anywhere from about 260 mm to 330 mm wide, to make room for heavier power delivery, more M.2 slots and, on workstation boards, eight memory slots. | 22 | from £236.63 |
| ATX motherboardsATX is the standard full-size desktop board: 305 × 244 mm, up to seven expansion slots and normally four memory slots. | 409 | from £45.66 |
| Micro-ATX motherboardsMicro-ATX boards measure up to 244 × 244 mm, with up to four expansion slots and usually four memory slots, or two on the cheapest models. | 466 | from £26.58 |
| Mini-ITX motherboardsMini-ITX boards are 170 × 170 mm with a single PCIe slot and two memory slots, built for small-form-factor cases. | 76 | from £27.36 |