To get an idea of the size of this case we put the Antec Three Hundred in the image below next to a 1.80m human and a collection of other ATX cases. The Three Hundred doesn’t stand out, featuring modest dimensions:
An important factor if you have a high end VGA card(s) is the depth of the case, as you can assume that a case with more depth will have a higher chance of fitting the current generation of single and dual GPU powerhouses.
In depth the Three Hundred is practically the same size as the Nine Hundred, which means it should have no issue with larger VGA cards.Look Outside
Antec made this an entry level case, which mean steal construction with minimal fancy design features; so what do you get for your money? A nice front panel, with less spectacular side panels and top. The metal is painted black to match the series:
At the left side of the case you’ll find a cut-out for a 120mm fan, no dust-filter here though, so if you want to add a fan here that blows air into the case, better put a self-made dust filter in front of it.
The I/O panel is situated at the top of the front panel, you get 2x USB ports, audio in/out , a power button and very small reset button.
A closer look at the front panel reveals the position of the mounting for 2x120mm fans:
The front panel lets air pass through freely, there is a fine dust filter placed behind the metal grill.
The rear of the case reveals the basic building material of this case, which is steel. You can also spot the 120mm exhaust fan, and the location of the PSU which is at the bottom of the case.
At the bottom of the case there are rubber feet which do help slightly to reduce vibration noise when the case is placed on a hard surface.
Let’s take a look inside ->