The Antec Twelve Hundred V3 conforms to the E-ATX form factor and so can accommodate motherboards with form factors ATX, E-ATX and XL-ATX.
It is made of Steel and its dimensions (LxWxH) are 513mm x 213mm x 582mm.
|Form Factor||E-ATX||Maximum Graphics Card Length||444mm|
|Motherboard Form Factors||Front Fans||3|
|Material||Steel||Front Fans Size||120mm|
|Expansion Slots||7||Top Fans Size||200mm|
|5.25″ Drive Bays||6||Rear Fans||2|
|3.5″ Drive Bays||6||Rear Fans Size||120mm|
|2.5" Drive Bays||1||IO Display Panel||yes|
|Tool-less Rails||no||Front USB 2.0 Slots||3|
|Length||513mm||Front USB 3.0 Slots||0|
The Antec Twelve Hundred V3 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. Using the E-ATX standard, the case can house motherboards and power supplies with form factors ATX, E-ATX and XL-ATX. The dimensions of the case itself (LxWxH) are 513mm x 213mm x 582mm.
The Antec Twelve Hundred V3 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 six 5.25" drive bays, which is more than enough to house various drives, particularly optical drives. With six 3.5" drive bays there is also plenty of extra HDD space as well. You can even slot in an SSD or a laptop drive in the one specifically designed 2.5" drive bay
Made primarily of Steel, the Antec Twelve Hundred V3 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.