| SPECIFICATIONS | |
| Brand | Montech |
| Series | Air Series |
| Model | AIR 903 MAX (B) |
| Physical Details | |
| Colour | Black |
| Materials | Steel |
| Plastic | |
| Side Panel | Tempered Glass |
| I/O Ports | 1x USB Type-C |
| 2x USB 3.0 | |
| 1x Mic | |
| 1x Headphone | |
| LED Switch | |
| Reset Button | |
| Motherboard Support | E-ATX, ATX, Micro-ATX, Mini-ITX |
| Expansion Slots | 7 |
| Drive Bays | 3.5": 2 |
| 2.5": 5 (Maximum, Utilising 1x 3.5"Drive Bay Position) | |
| PSU Support | 240 mm |
| Dimensions | 478 x 230 x 493mm (D x W x H) |
| Weight | 7.9kg |
| Pre-Installed Fans | |
| Front | 3x 140mm HP140 ARGB PWM |
| Top | N/A |
| Rear | 1x 140mm HP140 PWM |
| Fan Support | |
| Front | 3x 120mm, 3x 140mm |
| Top | 3x 120mm, 2x 140mm |
| Rear | 1x 120mm, 1x 140mm |
| Above PSU | 2x 120mm |
| Radiator Support | |
| Front | 360 / 280 / 240 / 140 / 120mm |
| Top | 360 / 280 / 240 / 140 / 120mm |
| Rear | N/A |
| Clearance | |
| Motherboard Tray | N/A |
| CPU Cooler Height Limitation | 180mm |
| GPU Length Limitation | 400mm |
| Cable Management | 27mm |
| Radiator Thickness | N/A |
| General | |
| Dust Filters | Top, Bottom |
| Chassis Lighting | N/A |
| Features | A Mid-Tower Case Designed for both Air and Liquid Cooling |
| 360mm Radiator Support at the Top and Front | |
| 180mm Height for a Top-Class Air cooler | |
| Innovative Mesh Front Panel for the Best Cooling Performance | |
| High-Performance HP140 PWM Fans | |
| Support for Vertical GPU Mounting* | |
| Ample Space for Flagship 4090 Graphics Cards | |
| Spacious Cable Management routes | |
| USB TYPE-C Port and 2x USB3.0 Port | |
| Includes 6-Port ARGB & PWM Fan Hub Controller | |
| Warranty Information | |
| Warranty | 1 Year Warranty |
| Manufacturer's Site | Visit the manufacturer's website |
|---|---|
| Product Link | Visit the manufacturer's page for this product |
- Highly recommended - Andre, 14 February 2026
For the price its really worth it. Not only does it looks sweet but the cooling itself is amazing. If I were small I would live there because it is really cool. I am very happy thank you.
- Good Price to Performance - Bobby, 27 December 2025
Used this case for my first ever build. Setting up in it was great, it's very spacious, the fans that come with it get the job done. Not a fan of the ARGB hub it came with, had to route my fans directly to my motherboard individually. Otherwise, good case for the price.
- Decent for the price. - Kaashif , 17 September 2025
1 issue was the PWM Fan controller didnt seems to work fans were at 100% all the time. had to connect the fans directly to the MB to gain PWM Control .
- Good Value - Johan, 15 September 2025
Great case for entry-mid level builds, price is good for what you receive.
The case comes with some additional screws, cable ties and Sata cables ect.
The x3 140mm fans at the front creates excellent airflow.
There is some whining noise when you startup your PC and all fans go to max RPM until you reach the windows screen, but this is not uncommon especially when you have a air cooled CPU as well. - Average - Q, 23 August 2025
Build quality and material used not of the best quality.
Fans are noisy above 900 RPM, and a strange humming noise over 1100 RPM.
At least the case is nice and big, but would have liked more space on top and bottom between the case and motherboard, would make plugging in cables onto the motherboard easier.
The case is cheap for a reason, so can't complain too much. - Good Service - Andre, 23 July 2025
I love this case, even though the tempered glass doesn't have the hinge, the case is easy enough to open. The fan hub is included just in case the 4 preinstalled are not sufficient. There's loads of space for when I eventually purchase my monster 16GB GFX card.
- Excellent buy, nothing bad to say - Kelan, 16 July 2025
This case is excellent in all aspects! It comes with ample space for future upgrades and the airflow in it is incredible. I noticed an immediate difference in temps after using this case with only the stock fans in it. I recommend this to anyone who wants to shop in this budget as you won't be disappointed!
- Great case - Avinash, 14 July 2025
The only gripe i have with this case is the bottom cable cutouts could have been a bit larger for Full ATX boards, it was a bit of a mission pulling the cables through to the motherboard after mounting the board.
- Big, spacious and well priced - Fredrik, 29 March 2025
I did a lot of research on PC builds before deciding, and I'm very happy with my choice. This tower comes with a lot of specs, compared with other units, and it's very well priced. It's looks really nice, it's a big, black and slick. I run a pure gaming rig, and there is ample space for more cooling should I develop the build. The three fans at the front does a sterling job at cooling the system. One thing to note, the fan speeds may need to be adjusted in BIOS or the mobo software (e.g. GCC in my case). I initially had the PC right next to my screen, and fan speeds were set to 'normal', and the fan noise was a bit loud, and the fans were revving. Then I figured out how to adjust the fan speeds, and I move the chassi to under my desk, and now I can barely hear the fans at normal workloads. I find that fan noise is less about the fans and more about the fan curve and related set up.
Build:
Chassi: Montech AIR 903 MAX
Mobo: Gigabyte X870 AORUS ELITE WIFI7
CPU: Ryzen 7 7800X3D
CPU cooler: Scythe SCFM-3000 Fuma 3
GPU: Palit GeForce RTX 5070 Ti GameRock
RAM: G.Skill F5-6000J3038F16GX2-FX5 Flare X5 32GB
SSD: XPG GAMMIX S70 BLADE 2TB
PSU: FSP HG2-850-Gen5 Hydro G PRO ATX 3.0 850W 80 Plus Gold PCIe 5.0 FM
- 1 Year and 3 Months - Altaaf, 6 February 2025
I've had the case now since November 2023, dropping my rating from 5 to 4 stars as the RGB of the fans has died, 3 months too late to do an RMA as there is only 1 year warranty, but other than that still happy with the case, great airflow, fans still works but just no RGB.
- Fantastic to Build - Hendrik, 1 February 2025
I Built my R7 9700X Gigabyte Aorus elite x870e fit in it like a glove. the case has tones of space and even with people saying it's loud. it makes less noise than my last case.
The built in fan controller with ARGB was awesome to have in the case. Cable management was easy.
The case looks good Functions great I would recommend this for both entry-level and advanced builders.
all and all it took me 60 min to build with 4 SSD's 4 m.2 drives. 240mm AIO and all cable management. - Good case. - Odwa, 18 November 2024
I was sceptical at first, but the online and Wootware reviews made me select this beauty. It's all as advertised and reviewed, and was an easy enough build experience.
The only things to consider with this chassis are:
1) Side panel doesn't have a groove/guide as you remove it, so extra care must be taken when removing the glass side panel (aka USE BOTH HANDS).
2) The preinstalled case fans are large enough to cool most builds, but also do become audible when the temps ramp up. So if silent is what you're after, consider a chassis without fans (to get more silent ones), or alternatively upgrade the preinstalled ones. - Stunning case - Mpho, 2 September 2024
As a first time gaming pc builder, I was not sure which case to choose. I was looking for something affordable and efficient, and i ended up with this case. I'm loving it! It looks and feels premium. I strongly recommend this case to anyone who is on a budget.
And thanks to the wootware team for thier service - Wow - Jacques, 29 August 2024
Looked at a few cases, picked this one for no reason at all. And what a lucky pick it was! Its big, really big! Its heavy! It's a legend! It is a lot of case for the money! I didn't expect much but I was wrong! Nice finish! It just looks much more expensive than it actually is. Everything is presented in a nice way! Every time I start my PC it feels like I am going to witness a majestic show!
- Premium quality at a great price - Jacques, 13 June 2024
This case brought my temps down, way down, to a different post code
Running a I7 13700kf
Msi Ventus Rtx 4070 Super OC
32gb DDr5 Ram
360 Aio with push/pull config
I love this case.
The only let down is the limited cable space, cable management can be a task.
This case can last you years and fit any gear. - Beyond expectations - Bokang, 11 April 2024
This is very good, impressive even.
Getting this felt like I won a great bargain.
It would be 5 stars but:
Side panels don't have guide rails, so you might drop the glass if you're not careful.
The PWM/ARGB controller is placed in an awkward and dangerous location.
Pros:
4 Big PWM fans
Include hub
Plenty of front and back space - Absolutely beautiful - James, 21 December 2023
Such an amazing case. It feels so premium. It looks premium. Has so much space inside building my pc was easy as can be.
- Great value for money - Erika, 9 November 2023
It almost feels like a scam that you pay this little for how much you get with this case. It is so spacious, so open, easy to build your rig in, looks great, has great airflow. Very happy with the included fans. Just a heads up, they will most likely be very loud on start up, but that's immediately fixed by just going to your BIOS and making sure they're set to PWM. After that, they are super quiet with still amazing cooling. Highly recommend.
- Only case you need - Mel, 8 November 2023
This case completely exceeded my expectations... I saw positive reviews on it, and "settled" for it as the case I wanted wasn't available anywhere. Now I'm glad it wasn't. This case is big, sturdy, silent and performs extremely well. Running fans at a constant and silent 900rpm, and it has no issues keeping a 3080ti + R5 7600 system at what I would consider well below average temps during stress tests. I'll be using this case for many years to come.
- Highly recommended - Johann, 8 November 2023
This is an awesome case. Solid build construction with ample of space which is only slightly bigger than a standard Mid Tower case. As the previous review stated, it comes with 4 fans, the front 3 with RGB which can be disabled if you are not into RGB. Hold the LED button in for a few second to disable to front fans RGB. I had to adjust the fan curve to a lower default setting as I was getting a humming sound which was caused by the fans spinning up and down. Since doing that the case is very quiet. The RGB and fan controls is handled by a controller which come standard with this case. Only connections required were the connection to the motherboard and power. Highly recommended.
- Best budget Case - Altaaf, 5 November 2023
for R1179 its huge, ample space for everything, 4 140mm fans with 3 being RGB and a fan/RGB hub included, fans are silent, not many cases at this price that comes with 140mm fans and a USB C port. No issues installing everything into it, keeping my components cool. Definitely a future proofed case and definitely recommend
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