What you should consider before buying a PC chassis.
Airflow - Although some cases might look great from first glance, they might be a bad idea for those who want to run powerful hardware. Great airflow is essential to any PC, especially Gaming PCs that will often be pushing their hardware to the limits. Limited airflow leads to overheating, which in turn causes thermal throttling.
Cooling Systems - If you plan to use liquid AIO coolers or install custom liquid cooling through your CPU and GPU, your case must have the necessary openings to make them easier and cleaner to install. Moreover, not all cases can accommodate liquid cooling radiators of all sizes. If you’ve already bought your cooling system, it'd be wise to check what radiators your case can support. Every cabinet's technical specs page will list the radiator size that is supported by it.
Graphics Card Length - Although this is becoming less of an issue nowadays with graphics cards becoming shorter and cases accommodating more clearance for them, it is still a possibility that your graphics card is too long to fit into the case you bought.
Cable Management - Again, this is becoming more of a standard feature. A case that has excellent cable management features makes your build neater and much easier to manage. Not only will your internals look gorgeous and clean but it'll also enhance your installation and modification experience even later on. Dedicated sections for hiding and routing cables and a removable backplate on the cabinet are good indicators of a case with decent cable management features.
PSU Shrouds - Loose cables sticking out from your PSU have probably frustrated every single person who has assembled a PC themselves. PSU shrouds in cases help hide loose cables as well as the PSU inside a neat enclosure. This is a must-have if you want a certain neatness and a clean build.
Front-panel Connectivity - Do you need specific USB ports or audio ports on your case’s front panel? Make sure you check the connectivity options that your cabinet's front panel supports. From the latest USB standard to the beloved 3.5mm audio jack, you should find exactly what you need from a bunch of PC case options out there.