Page 3 - Physical Look - Inside
After opening the tempered glass side panel, you can see the internal design of the In Win 303. To be consistent with the exterior, the interior of the case is also painted matte black. The paint is sprayed evenly inside the chassis. On top of the case, there is a PSU chamber with a honeycomb ventilation grille on the wall. The other side of the PSU chamber is actually the side panel, and there is also a ventilation grille here. Not only is it designed to accommodate the power supply, the PSU chamber is also a fan/radiator rack that can support 360mm radiators up to 70mm thick with fans. Unlike conventional designs with fans at the front panel, the heat from the power supply and radiator can be blown to the outside of the case through these ventilation holes directly, leaving the lower part of the case completely unaffected by the warm airflow. If your In Win 303 is fully loaded with fans, graphics cards, and long radiators for CPU water coolers, the cool air can be pumped by up to three 120mm fans into the chassis through the air filter, hit the graphic card, cool down the radiator in the PSU chamber, and then be expelled out through the ventilation grille on the side panel. A small radiator and 120mm fan can be put at the back exhaust, which I will discuss later. If you only want to use a heatsink instead of a closed loop water cooler for your CPU, you can just put multiple fans on the PSU chamber. Those fans can generate airflow inside the case to take out heat. 5.25" drive bays are not present in the In Win 303, and this is to reduce airflow obstructions. It will be inconvenient for those people who want to use a CD/DVD drive. The only solution is to use an external one through USB, but let us be honest here, it is 2016, after all.
As a mid-tower that pushes the size envelope, the In Win 303 can support full size ATX motherboards, and of course, smaller boards such as mATX and mITX. Four motherboard risers are screwed on to the tray already from the factory; as for other risers, users need to apply them according to the size of motherboard that will be used. Due to the fact there are no markers on the motherboard tray, one simple way if you are not as experienced in building computers is to lay the risers on a piece of paper on the tray, and mark the holes after a mock installation of the motherboard. According to the locations of the marks, the risers can be screwed on to the tray in the correct positions. After bolting the motherboard into position, the heatsink or water cooler block can then be easily installed and removed, thanks to the big rectangular opening on the tray. From the above photo, you can see there is no fans from the factory on In Win 303’s rear exhaust opening. As I have mentioned earlier, users may not get a fan, but if they just want to use a closed loop water cooler system, it is more convenient to install the radiator directly onto the chassis without removing any preinstalled fan. The expansion slot covers of the In Win 303 feature a mesh design to allow better ventilation, but I would prefer it to be a solid piece for better dust prevention, since I really doubt it makes a significant difference to just have several small holes here.
5.25" drive bays have been on personal computers since early 1980s. Now it is the time to get rid of them, since we can simply use flash drives for almost everything, including installing the operating system. As such, the In Win 303 has no 5.25" drive bays. I like this design a lot, since it means less airflow obstructions and a generally cleaner appearance. From the above photo, it can be seen there are two removable 2.5" SSD/HDD trays attached to the case by using clips and thumbscrews. Between the two 2.5" SSD/HDD trays, a rectangular opening is provided to route the SATA power cable to the back of the motherboard tray for cleaner wiring. This is pretty important for a case that has a transparent glass panel. The case can fit graphics cards that are less than 350mm long. For those long and heavy graphics cards, In Win 303 provides a specialized GPU holder for additional support, which can greatly reduce the stress exerted on the PCIe slot. You can find the GPU holder in the plastic bag, along with other hardware and accessories.
This photo clearly shows the details of the PSU chamber. The PSU is mounted vertically, therefore there is enough space for both the radiator and its fans to be mounted between the PSU chamber and the tempered glass panel. Power cables can get through the rectangular opening located in the middle of the chamber to the motherboard region if you do not want to route the cables through the back of the motherboard tray. The biggest radiator supported by the In Win 303 is 360mm long and 70mm high with fans, as mentioned earlier. If you have a really long radiator that can cover the whole length of the PSU chamber, it should be noted the radiator will also cover the power supply, which will blow hot air onto the PSU directly. Therefore, I prefer to use a shorter radiator that will not overlap with the power supply.
Upon removing the right side panel, otherwise the non-glass panel, you will see the other side of the PSU chamber and the motherboard tray. As I have mentioned earlier, in order to accommodate the radiator and fans, the shape of the PSU chamber requires the power supply to be mounted vertically. You do not need to worry about the cooling of the power supply, since on both sides of the PSU chamber, there are honeycomb grilles to guarantee ventilation. Two 3.5" HDD trays are located to the left side of the rectangular opening designed for easy installing and removing of the CPU cooler. The design of the mounting mechanism of the 3.5" HDD bays is the same as that of the 2.5" SSD/HDD; you just need to screw in your HDD on to the tray, and use the thumbscrew and clip to attach it to the motherboard tray. Regarding cable management, the designers of In Win 303 did a fairly good job; there are tons of room for cables. Between the motherboard tray and the right side panel, the room for cable routing is about 1.25", which is excellent even for thick cables. No integrated cabling guide is found in the case; instead you can use zip ties included in the accessory bag. By the way, there are no rubber grommets on the motherboard tray. It may be a disadvantage, but nobody will consistently shake their computers, right? Keep in mind this is a $95 case.
Generally speaking, the interior design of In Win 303 is pretty good. All of the components you need for building a computer can be nicely accommodated and kept cool. The paint job quality of the interior is also great. More importantly, you do not to be an expert to route cables, since there are plenty of room to do what you need to do.
Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Installation and Conclusion
