Antec One S3 Boxshot

Antec One S3 Mid Tower Chassis Review

  1. Introduction
  2. Packaging and Specification
  3. External Impressions
  4. Internal Impression Part 1
  5. Internal Impression Part 2
  6. Test Bench and Installation Experience
  7. Conclusion


The Antec One S3 share similar con as highlighted in BitFenix Merc’s review. The Front panel connectors are directly installed on front panel bezel itself rather than having it on a plastic enclosure and then mounted on the case like how Corsair C70 has it-even CM Elite 311 has it- so when have to clean the internal section of the front panel- lets say the front panel fan- you have to remove the front panel. Imagine you being in a situation where you have this case with all the cable management routing that you worked so hard all thanks to the trusty cable ties, only to be in a situation where you have to be careful when removing the front panel without too much force just to clean the front fans after certain period of time.



The air vent for the front panel is towards the bottom. Shouldn’t be a problem if you have about 2-3 HDDs and a mid-end rig with a good enough fan, but having vents on the side of the front panel bezel- or having a proper 120mm vent on the front would be a lot better off.


You get the usual headers and an HD audio header. As promised by Antec in their packaging specs, it uses USB 3.0 headers to power the 2x front panel ports.

_MG_9463 There is also a mount for 120mm x 25mm fan on the front.


There is space for 4x 5.25″ drive- however, the 4th is occupied by the front panel connectors. You can slide in 1x 2.5″ SSD drive on towards the top and 5x 3.5″ hard drives by using the sliding rails provided.


Except maybe about 1/2” in approx. between the motherboard and the protruded portion of the right sidepanel, there’s hardly any space at all. I am not really sure if you can do any real cable management but you’ll get to see that on the next page.


I am not sure of the model and its specs, but a single 120mm fan is provided and preinstalled on the top panel. There 3x LED lights on the fan’s frame.


Looking at the measurement of the area that you will use around the motherboard tray, it does feel a bit cramped of at least 1/2-1-2” in depth, height and the space between the PCIe slots and the HDD tray.

1 comment
  1. after adding $20 more you get 300R from corsair a much superior case. bitfenix and caselabs have good cases too. antec is late to the party and this is the party they should be an early bird…

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