The Dell Dimension E520 conforms to the E-ATX form factor.
|Form Factor||E-ATX||Side Fans||1|
|Motherboard Form Factors||-||Rear Fans||1|
|Color||Silver||IO Display Panel||yes|
|5.25″ Drive Bays||0||Front USB 2.0 Slots||6|
|3.5″ Drive Bays||0||Front USB 3.0 Slots||0|
|2.5" Drive Bays||0||eSATA||no|
|Tool-less Rails||no||Audio IO||yes|
The Dell Dimension E520 has a the E-ATX form factor. Extended ATX is a slightly deeper version of the ATX standard which is designed to provide all the advantages of ATX but with slightly more room.
Made primarily of Steel, the Dell Dimension E520 is built to be strong and well-ventilated. Steel cases are generally fairly cheap and sturdy, but also tend to be quite heavy. Whatever your case's material, it is important to keep a consistent airflow so that heat doesn't build up inside. It is therefore advised that you make use of the available built-in case fans and fan installation sections.