At a first glance it looks like on the inside the 303 is quite spacious, since the part next to the motherboard look like almost empty. Nevertheless there are a few things we’d like to mention further below.
As we already pointed out, this case is compatible with standard ATX motherboards and considering this it would make sense to offer quite a few slots for HDDs/SSDs. In total two 3.5inch and two 2.5inch drives can be installed which really isn’t too much. In the motherboard tray there is a large opening behind the CPU socket, which allows you to install aftermarket coolers without the need of removing the motherboard. Around the tray, there are a few openings for routing cables, but there are no rubber grommets. In the case of the 8-pin EPS pass-through we noticed that the cable need to be pushed through before the motherboard has been put in place, which is not that ergonomic.
The arrangement of the internal components is completely different from any other case. Inside the 303 the power supply is placed in the top, similar to cases from a few years ago, right next to the PSU there is space for a 360mm radiator. Should you decide to install a triple radiator then some of the airflow will be block by the PSU. Actually warm air from the radiator will travel into the PSU. Apart from that if you either install 120mm or a 240mm radiator at this location, then you should make sure, that the tubing is long enough. We would try to avoid placing a radiator in front of the power supply to keep the temperatures of the latter as low as possible.
A look at the bottom part of this case shows there is space for three fans for a triple radiator. If you decide to install a 360mm radiator at this spot, you will block PCI Expres expansion slots from your motherboard as well as I/O headers at the bottom edge of the motherbard. Depending on the thickness of the radiator Multi-GPU systems won’t be possible anymore, although we believe it to be rather unlikely that a customer, buying an €100 case is going to run a multi GPU system with custom water cooling. |
Cooler Master MasterCase Maker 5 Review 