 We don't really do case reviews anymore because well, if we're being honest, they haven't really changed much lately other than some tempered glass here and some RGB there. But that's not the case with this one. Ha ha ha ha ha ha. This is the Silverstone Mammoth MM01, a spectacularly heavy black monstrosity whose claim to fame is being really difficult to open the box of is being dustproof and splash proof. So things are about to get wet. Literally, we are gonna spray water on a system in this case with an extreme edition processor running inside it. But you know what we're not gonna spray water on? Brandon, because he deserves better than that even if he did bung up the audio settings the first time we shot this. Korsair's Obsidian 500D mid-tower gaming case features premium tempered glass and aluminum construction, removable top fan trays and more. Check it out at the link below. This thing actually launched all the way back in 2015. Completely flying under my radar due to its unprecedented level of niche-ness. So you could think of the Mammoth as kind of like the off-road edition of what would normally be a computer case, like designed for use in rough conditions. You know, it's actually not that crazy big, but it's really heavy. Oh my gosh, that's pretty brutal. It is. Kind of got a plain sort of look to it. Yeah, there's no tempered glass here. That's pretty nice. And it's magnetic. Yeah, yeah. It's magnetic, clips into place like that. The exterior is about as plain black box as you can get. It sports a brushed steel finish, but in the age of tempered glass windows, you'd be forgiven for thinking it's a little boring. But if you look a little closer, the entire top of the case is completely sealed. Right, so no IO or fan holes whatsoever up here to keep water from getting in, presumably. And check out these. So this is cool. These front louvers are not an aesthetic feature. Instead, they actually serve to prevent fluids, again, from getting to the internal components of the PC. And flipping it around to the back, you can see it has the same louvers here with a notch at the bottom. Check that out, to allow you to get cables to the rear IO. The design of the Mammoth gives it an impressive IP43 rating, meaning it's safe from not just drips, like if you were to spill a cup of water onto the table next to it, but even water sprays. Now, I wouldn't recommend pressure washing your computer and gaming at the same time, but if you left a window open with the sprinkler running, your computer should be okay. It's just the rest of the room I'd be concerned about. Let's crack it open. Yeah. Oh. Here we find the MMO1's second party trick, a full fat 20 millimeter thick HEPA filter. Now most fan filters are pretty good at mitigating dust buildup over the short term, but a filter like this is spec to remove 99.97% of particles larger than 0.3 microns. That's smaller than all but the smallest bacteria. So I guess you won't have to worry about your PC getting the flu. Obviously compared to a regular filter, this one's gonna be a little more restrictive. Right, but it looks like Silverstone thought of that because they not only have to push air through one just like that, but also the HEPA filter. And the solution, these babies. Two massive 180 millimeter air penetrator fans. At max speed, which you can control with these knobs at the front, these move a whopping 340 CFM of air, about the same as a typical pedestal fan at medium. Pretty darn impressive. Then to top it off, there's actually space to install a rear 120 millimeter fan as well. So while Jake builds up a high-end system for our tests, let's get a little bit of preparation done. molecule Okay, it's done you want to see yeah, let's have a look All right So there are a few things that stand out a lot of cases these days are basically just The standard layout with a different bezel on the front not so here So first of all the layout is inverted so the CPU is on the bottom and the GPU is on top second our power supply actually takes a page out of 2006's book and is up on the top But still with no ventilation That's because the whole top was sealed to keep water from getting in so the power supply actually has to suck air from the inside Then blow it out the back fortunately these fans that we showed you guys at the front should keep it well supplied with fresh air I'll take a moment here to show you guys this here CPU so heat sink support thing So there's actually one for both the graphics card and the CPU which if you think about the applications of this case on Let's say something like a boat makes a ton of sense because if this PC is a rockin You don't want your heat sink going a-knockin about on the inside Because of the design of the filtering system nearly 40% of the space inside the case is taken up by the filter in the front and the buffer in the rear to prevent Water from entering the system it does limit your cooling options but even with the relatively limited space the MMO one can still fit four dual slot graphics cards and Easily houses up to an SSI EEB dual socket motherboard if you're willing to limit your storage expansion to two three and a half inch drives So this is all good in theory, but we want to see what kind of thermals We might expect with a high-end system in this case So you want to throw the panel on there, and I'll get a stress test fired up here It's actually kind of amazing how much air these fans move through that HEPA filter. Yeah I mean they are max speed Rather than leave it at these settings though like this is quite loud. I want to go with not minimum, but Quiet enough that it probably wouldn't bother anyone That seems pretty good, and we're still getting like quite a bit of airflow back here. Let's give it some time to heat up Yeah, okay, so these are not bad results actually GPU is turboing up to 1780 or so at its 82 degree maximum and our CPU has only two cores above 60 degrees three Not too shabby. Yeah, I mean there's an NH-D15 in there, so CPU temperatures are probably expected Are you ready to run it through the gauntlet? Yeah? Let's do it Alright, so we're here We're gonna do the gauntlet Linus is a little busy with another video, and I definitely am not doing this for the second time No, this is never done this test before Let's let's turn her on get these fans choochin So there might be a little bit of dust in there But I kind of have an idea of how much was in there beforehand just throw a little dust on there you're nice and Not nice, I guess I really hope we don't have to do this again because I do not have any dust left All right, so there's Actually quite a bit of dust up here. I'm not really sure how that got in there Okay, so let's let's turn it off this time and see what's going on inside. I Think for the most part. It's gonna be pretty decent, but I imagine there's going to be some leakage All right so That is a little more Dust than was in there before so I don't think this system is perfect, but it actually held up pretty good Regular computer dust is not going to be an issue for this thing Maybe don't throw sawdust at it or use it in your wood shop, okay? So let's see how the filters doing oh? No, that's gross oh So the attacked side is pretty disgusting, but when we flip it over Pretty damn clean, so it looks like a little bit of dust got in But I imagine it's probably just from the cracks around I don't think dust that big would get through a filter like this And then on this side Pretty dirty here as well all right. Let's get to the water Oh my god You think I should spray with the hose too. I think we should spray it with the hose all right I Should probably turn it on before we spray it with the hose Oh, oh, oh Where's the water I Really hope this survives my test bench actually it would be really inconvenient if this died I'd be kind of upset to be honest There's a little water in there, but for the most part looks like it's dry Wow Wow completely dry inside sure, there's a little water around the edges, but Inside the computer. There's no moisture. I Think we should probably test this before I bring Linus over. You know just in case it doesn't work display for Is this monitor even plugged in oh my gosh oh Yeah, it works, okay, let's let's get Linus and show them the carnage So to be honest I already opened it There is a little bit of dust in there no water water no water. I sprayed this thing down good Yeah, yeah, I see that this side is a little beat up. Yeah, I see that Wow Wow, but it caught it. Yeah, so yeah, there's a little bit of dust on the panel there You can see some of the chunks did make it through, but I mean Compared to what you'd see in a normal case That is really impressive I Think my dust abuse is a little out of the ordinary as well Yeah, no, I mean this is obviously a torture test But you can see even where the water did manage to penetrate the design doesn't allow it to go any further than this Yeah, there's a little splash shield here, too So It doesn't have the greatest cooling characteristics out of any case we've ever tried But it's utterly unique in its dust and water resistant design making it at what is it 300 bucks? 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