E-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. The name is used loosely, so compare the board's stated dimensions with your case's motherboard clearance rather than trusting the label.
Guide:E-ATX motherboard form factor guide — E-ATX boards are wider than ATX, but the name is used loosely and sizes vary. How to check your case takes one, what…
22 E-ATX motherboards tracked · from £236.63 · showing 1–22