The Antec X1 conforms to the ATX form factor and so can accommodate motherboards with form factors ATX, Micro-ATX and Mini-ITX.
|Form Factor||ATX||Front Fans Size||120mm|
|Motherboard Form Factors||Side Fans||1|
|Material||Not sure||Side Fans Size||120mm|
|Expansion Slots||7||Rear Fans Size||120mm|
|5.25″ Drive Bays||3||IO Display Panel||no|
|3.5″ Drive Bays||8||Front USB 2.0 Slots||2|
|2.5" Drive Bays||0||Front USB 3.0 Slots||0|
|Front Fans||2||Audio IO||no|
The Antec X1 has a the ATX form factor. ATX is the most ubiquitous of case standards, providing the largest array of compatible hardware on the market. Using the ATX standard, the case can house motherboards and power supplies with form factors ATX, Micro-ATX and Mini-ITX.
The Antec X1 has seven expansion slots, so there is plenty of room for extra components, which may be a deciding factor when planning on the longevity and build type of a PC system. The case has three 5.25" drive bays, which is enough to house an optical drive and a couple of hard drives, while still having space for plenty more HDDs with the eight 3.5" drive bays that are also available. There are no 2.5" drive bays, though, so any SSD or laptop-sized HDD installation would require an adapter.