Editing ATX (section)

=== Physical characteristics ===
ATX power supplies generally have the dimensions of {{convert|150|xx|86|xx|140|mm|in|abbr=on}},<ref name="atx12v"/>{{rp|23–24}} with the width and height being the same as the preceding [[LPX (form factor)|LPX]] (Low Profile eXtension) form factor (which are often incorrectly referred to as "AT" power supplies due to their ubiquitous use in later AT and Baby AT systems, even though the actual AT and Baby AT power supply form factors were physically larger) and share a common mounting layout of four screws arranged on the back side of the unit. That last dimension, the 140&nbsp;mm depth, is frequently varied, with depths of 160, 180, 200 and 230&nbsp;mm used to accommodate higher power, larger fan and/or modular connectors.