A Closer Look - Outside

The S300 TG essentially looks like the S500, but is a bit more compact. As the name implies, it also utilizes steel for the exterior panels. While this makes the chassis a bit heavy, the visual result is just as great, and the chassis feels really nice and sturdy.


In the front, the solid panel is completely clean, just sporting the Thermaltake logo on the bottom edge. You may pull the cover off to reveal three 120/140 mm or two 200 mm fan-mounting possibilities. Alternatively, this area can also hold a radiator of up to 360 mm. In the rear, the layout is quite traditional, with the PSU bay on the bottom. That said, compared to the S500 TG, the S300 TG lacks a separate top panel.


Thermaltake has done well in keeping the window of the chassis nice and clean, without any visible mounting holes and a nice black frame. With the white interior, you can clearly see all the bits and pieces within the S300 TG. On the opposite side is an air vent that is protected by a dust filter. You may secure three 120 mm fans to the side panel directly, or go as far as another 360 mm radiator inside if you remove the two internal 3.5" bays.


The PSU bay below comes with two sets of mounting holes, so you can install your unit any way you like. Above that is Thermaltake's unique setup with seven horizontal expansion slots. This plate may be taken off and rotated ninety degrees to allow for dual, vertical GPU placement if you buy the PCIe ribbon cables. The very top is taken up by a 120 mm exhaust fan set to push air out the back of the chassis. As there are elongated mounting holes, you may adjust its height to perfectly align it with your motherboard.


In the top is another air vent that is also covered by a magnetic dust filter. Here, you may install three 120 mm, two 140 mm, or a single 200 mm fan. For those into more radiator support, this area can take a 280 mm radiator without issue. In the front of the top, you will find the usual power, reset, and audio I/O alongside one USB 3.0 and two 2.0 ports. I would have liked two USB 3.0 ports and no more of the aging 2.0 variants instead. All ports are covered by rubber plugs to keep dust and grime out, which is a nice little touch.


Two basic mesh dust filters cover the underside of the Thermaltake S300 TG to keep any bigger dust particles out of your case, and thus the PSU as well.