Antec India along with Abacus Peripherals recently launched their new GX series lineup in India. Three new cases were launched mainly the GX300 , GX500 and GX700. The new model in the family, named the GX300 is designed to provide the essentials, which you need to build a performance gaming system, and a little extra features, which many would find appealing. Its a budget case with added features that are hard to get from others in the same price bracket.

Build Quality


The Antec GX300 is black all over everywhere. Its has a great paint job all over the entire chassis and you wont be able to differentiate between the Plastic components and the metal. The only place its not painted is the huge side panel window which gives a good peek of the hardware inside thr case.


Their is a slight angle at which the case sits and it gives it a distinct posture. It not straight like any other case and is inclined more towards front. Antec GX300 is made of steel and plastic, which is used mainly for the panels and stands. Their is a gray Antec logo that sits in the middle of the front panel and another Antec logo is present on the left side panel with GX300, written in gray again. A front panel has mesh grill vents all over it and openings on the sides are left to supply fresh air for the frontal fans.

Moving forward with the side panels, they are both extruded to allow more space inside the case, which is a nice touch, as higher CPU coolers might be installed and space for cable management is always a must have. The Front and back stands are reliable and provide enough grip for the case, also they have an essential part in the complete looks of the case.

There are openings on the top panel as well, which are for the exhaust air, and the entire top panel is made of mesh grill. Also there is an external hard drive slot, which the basic version doesn’t support, and one of the USB ports is not provided. Examining the top panel further, we can see the integrated fan controller right next to the drive bay, audio jacks, reset and power switches.


The power switch is quite tactile and is easy to press, whereas the reset switch is restricted for no accidental restart of the machine and the usual USB 2.0/USB 3.0 port are available here also.

The build quality is good enough for a case in this price point and it may be hard to find any other with similar features within the same price bracket.


Interior-wise the case seems quite familiar to the Antec GX500, a case with similar specs. GX300 is able to be fitted with Standard ATX, micro ATX and Mini-ITX motherboards and has a total of 7 expansion slots to be utilized. Large CPU cutout is visible immediately, useful enough for those who change their CPU coolers on a regular basis.


There are slots for 6 drive bays, all of them compatible with 3.5″/2.5″ storage drives. Antec left space for 3 x 5.25″ optical drives, if you are still a fan of those or you just need some discs burned.

Lack of rubber grommets is a bit of a minus if you ask me, however with all of the interior being black I believe the big picture will not be disrupted by the missing rubber grommets.

Included accessories:

9 x ATX screws

8 x Fan long screws

5 x Power + VGA screws

8 x ODD+SSD screws

2 x rubber plugs for USB ports

2 x rubber plugs for audio jacks

5 x plastic, non-reusable zip ties

Long screws for all of the HDD bays.

1 x additional MB standoff

Pretty much all you would need if you undergo a system build with GX300 is added to the accessories. And not to forget that all the screws are black painted to match the looks of the case, as some manufacturers still include the non-painted screws that sometimes make you want to go and buy or use a different set of attachment products.

Here’s what you are going to find Inside the Antec GX300

1 x GX300 steel chassis

1 x front mesh grill panel

1 x top panel

2 x solid side panels

1 x removable dust filter

1 x 120mm Antec fan

1 x front stand

1 x rear stand

1 x HDD cage

6 x HDD plastic rails

Loads of black screws


Front and rear feet are made of hard plastic and non-slippery material attached to them to absorb vibrations and to ensure the case will not move around easily. Frontal stands role is to keep the case’s front part at an angle, not commonly seen, but nonetheless it gives an interesting look to the GX300. The stand is secured by four small screws and the rear feet as well.

The included fan in GX300, It is 120mm, with a standard frame of 120mm x 120mm x 25mm, black 3-pin cable and black frame to match the interior. Blades are 7 with slight curve to them to provide nice steady airflow as an exhaust. The fan is attached with standard fan screws, however there is a minor important detail – rubber pads which will absorb any vibration being passed from the fan motor to the metal chassis.

The top panel, which is held by four short screws and has a dust filter installed under that mesh grill. To the top panel there the I/O cables, fully black and long enough to give you the necessary flexibility when building your dream machine. The included fan controller is powered by one 4-pin molex connector and has two 3-pin fan connectors available. Another molex connector is present here, used for the LED strip on the front.


The HDD cage has two positions for it, however I find it hard to see what is the purpose of that. In the original position there three slots that could be utilized with 3.5″/2.5″ drives as the rails for them go directly in, but in the second, narrow position, neither the rails can go in, nor a 2.5″ drive. Only benefit that I can think of is the extra space provided for a GPU, the maximum length of a GPU can be up to 400mm.

Antec provided mounts for the HDD/SSD which are black and have white/transparent rubber mounts to absorb vibrations. Installing a drive is quite a simple process of 4 screws provided in the package, securing the drive firmly.


For the testing I will use an Intel based system with Z68 chipset motherboard.

Intel Z68 Test system

CPU: Intel i5-2500K

Motherboard: MSI Z68 GD 65 B3

Video card: MSI AMD R9 280X GAMING 3G

Memory: A-Data XPG 8 GB Dual channel, 1600 MHz

Solid State Drive: Intel 530 Series, 120 GB

Hard drive: Western Digital 640 GB Black Series

Case: Antec GX300

Power supply:  Corsair RM750 W

Cooler: CORSAIR A70

Thermal paste: Noctua NT-H1

Before proceeding with the tests I had to install my test rig inside which was an easy task. Modular PSU is a charm to work with, but if you are an owner of a PSU with all the cables attached you might find it a bit hard to route all of the cables. I would recommend before installing the MB to route the 8/4-pin CPU power cable first, as later there is less space in the case and the hole for that cable is not big enough. Otherwise it is a straightforward process of putting everything where it should be.

Their is enough space for the system to go in and I have to be honest that it all looks quite neat and tidy – what a lovely case!

As I expected temps are not great with that high amount of stress put into the system, so this will be the only test conducted. If more voltage is applied to the CPU the temps inside will become a bit of a concern and the Corsiar A70 might not be able to handle it.



I’ve spent several hours and a week of use with the Antec Gx300 and I believe it is time to express my thoughts regarding the product.

1. Antec GX300 performance – Well, even though it didn’t blow my mind in terms of cooling I cannot say that the case is performing badly either. I am certain that if more fans are installed it will be a huge improvement as the whole airflow path will be different. Not to mention that there are GX300 variants with two fans included, so performance will vary from version to version. Given the relatively low price tag of the case it could be equipped with additional aftermarket fans to guarantee a steady, cool environment for the hardware inside.

2. Antec GX300 appearance – As I mentioned before in the article the case really has outstanding looks and differs from many of the chassis being sold at that market niche. The slightly angled posture brings a great deal of diversity as well as the sleek overall design. Black version is my personal favorite, and the other colored/window options are prone to success for all the different users out there.

2. Antec GX300 noise level – Being with one fan only, adding the CPU fan and the GPU itself I can say the case is astoundingly silent, which is not a surprise at all. That 120mm included Antec fan, spinning at 1200 RPM is indeed silent and when left spinning at lower RPM you have almost a passive cooling silence in the room.

At the end I just want to say, Antec has done a great job with the GX300 and we can see it in the performance and features of the case. It a great case for the price bracket and I can see why this might become the case for all the entry level enthusiast builds.

Special thanks to Аbacus Peripherals for providing us with a Review unit.