The be quiet! PC case Dark Base 900 gives you total flexibility with unparalleled cooling and quiet features. It was designed for high-end case enthusiasts who expect the best in terms of modularity, compatibility and design for their workstations or overclocked or watercooled systems. The Dark Base 900 has many modularity options to satisfy every desire as well as many features to support special configurations. Its steel and aluminium surfaces provide great stability and extreme elegance.
It has 3 PWM fans included and a scalable cooling system. It supports E-ATX, XL-ATX, ATX, M-ATX, MINI-ITXmotherboards.
State-of-the-art cooling system
The be quiet! Dark Base 900 has an innovative design with outstanding performance that ensures efficient cooling and perfect ventilation in an inaudible manner. The well thought-out airflow control and the noise reduction features make it the ideal case for gamers and users who want to be quiet.
The three virtually inaudible 140mm PWM SilentWings 3 fans offer unrivalled and uncompromised performance with a host of great features ( 6-pole motor for low power consumption and vibration, hydrodynamic bearings with copper core for longer life, uniquely designed blades optimised for better airflow, funnel-shaped fan frame for higher static pressure, high quality motor control IC to reduce electrical noise).
It features intelligent airflow with sound-isolated vents all around the case and the manual controller supports up to 3 PWM fans and 3 three-pin fans. This case can include up to 6 x 140mm or 9 x 120mm fans and supportsup to 420mm watercooling radiators in four slots (front: 420mm - top: 420mm - rear: 140mm - base: 280mm)
Enjoy true flexibility
With the Dark Base 900 PC case, you can assemble the multimedia, office or gaming configuration of your dreams. There's room for all your components and plenty of extra fans can be added to cool even the most powerful systems.
Repositionable disk cage to suit case space requirements
E-ATX and XL-ATX support for virtually any motherboard
Up to 7 hard drives, 15 SSDs and 2 optical drivescan be installed
Graphics card up to 325 mm long (470 mm without HDD slots)
Fan tray up to 185 mm high
3 x 140 mm fans included + 9 free slots (120 mm) or 6 free slots (140 mm)
2 USB 3.0 ports and 2 USB 2.0 ports on the front + HD Audio (microphone, headphones)
Main features :
Large tower case for motherboards in the following formats: E-ATX, XL-ATX, ATX, M-ATX, MINI-ITX
Efficient cooling system and perfect ventilation (3 fans supplied and 9 additional 120mm slots)
Tool-free mountingsystem
4 removable dust filters: 1 front, 1 rear, 2 side
Intelligentcable management and air filters easily accessible for cleaning
Large space for all components including watercooling radiators
Soundproofing materials, anti-vibration systems
Optimised air flow, side door to adjust air flow to the required level of silence
Dimensions (DxWxH): 577 x 243 x 585 mm for 14.2 kg
A very aesthetic design, the monster weighs its weight which makes the machine very stable and protects all the components during transport. As usual, the design is top-notch, and the machine is very quiet, managing my 32 cores well.
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by didierA
Posted on 25 Dec 2023
Bought on 20 Dec 2023 from LDLC
Number of reviews: 2Average rating: 8
Nice case but not very functional
Given the size of the case, I thought I could easily install a high-performance water cooling unit (360mm and 3 fans) to cool a Z790 / I9 14900K combo card. According to the manufacturer's documentation, this case allows this type of cooler to be installed either on the front or the top. This is both true and false! For front panel installation, you have to sacrifice the slot for the optical drive (CD/DVD/BR), which in my case was unthinkable. For top-mount installation (my choice) you have to place the radiator above the bracket and the fans below (the bracket is therefore located between the two), otherwise the whole thing covers part of the motherboard and prevents access to the power supply connectors and the fans and pump for the processor. "The icing on the cake is that I had to cut one of the brackets to allow the filler plug for the 'Silent Loop 2' cooler from the same manufacturer to pass through... Finally, to install the power supply (a Corsair HX1000i) I had to move the fan to the underside and buy an optional cover to get a 'drinkable' design. To conclude, I find that Be Quiet is not the champion when it comes to installation guides (video or PDF) for its products (not just for beginners) and could improve the manufacturing (beautiful products but not necessarily very functional).
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by orenx22
Posted on 6 Jan 2022
Bought on 4 Jan 2022 from LDLC
Number of reviews: 1Average rating: 10
Quality product
Perfect finish, ideal modularity.
I was able to install my configuration with simplicity, remove all that was not used (dd bay).
The small dd ssd storage on the cm panel is well positioned.
I'm very pleased with the quality of the product.
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by MireilleB
Posted on 1 Nov 2021
Bought on 1 Oct 2021 from LDLC
Number of reviews: 1Average rating: 10
Very versatile product
Order received on time, the hardware is very versatile which allows for great adaptability. The removal of the hard drive mounts allows for great length for the placement of the larger graphics cards, The enclosure is very quiet.
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by HotF1t3r
Posted on 7 Jul 2021
Bought on 27 Mar 2021 from LDLC
Number of reviews: 2Average rating: 4
Too expensive for the price
It's expensive because it's from ldlc, but also because of what it offers. The case is full of little problems that you discover as you assemble it. I think they should invent some non-metallic fastening systems for the screws.
In short I should never have bought this mess and I let you discover its size and weight. After my 3rd configuration I'd say, get a medium size box at 100, 150€.
The good thing is that it's orange on the edges.
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by McGregor777
Posted on 29 Mar 2021
Bought on 1 Mar 2021 from LDLC
Number of reviews: 15Average rating: 9
Great housing
Spacious, well laid out and rather pretty, I am really satisfied with this case in which I did not have any trouble mounting my configuration. The only drawback is the power cable for the ATX power supply units: the layout means that the connection of the first to the second is done by twisting the cable, and this is not very intuitive, nor very secure in my opinion. Apart from that, the discreet and efficient fans allow a top cooling, there is enough space for very full configurations. In short, it's great!
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by philippe C
Posted on 11 Dec 2020
Bought on 13 Oct 2020 from LDLC
Number of reviews: 12Average rating: 10
Excellence!!!
Large case? Yes, but not only. Discreet by its sober, even minimalist aesthetic. Inside, everything has its rightful place. The cable management is very easy and comfortable. It has all the air its components need thanks to generous original ventilation. And the best thing about it is the silence. This case represents for me the BE QUIET perfection! I already had a mid-tower case that was starting to get cramped, so the choice of Be Quiet for its successor was an obvious one. I am very pleased with the quality of the product and the service. I am very pleased with the quality of the service and the quality of the product.
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by Nicolas C
Posted on 4 Dec 2020
Bought on 5 Nov 2020 from LDLC
Number of reviews: 4Average rating: 9
Very good, but not inaudible even at rest
Good case but beware, the chassis fans are audible even at rest and at minimum speed
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by JohnnyL
Posted on 26 Oct 2020
Bought on 25 Sep 2020 from LDLC
Number of reviews: 4Average rating: 10
perfect
Hello,
I received my baby and it took me a while to touch him.
First you look with your eyes.
Easy to assemble, [it is huge].
**A little regret.
I have a crazy baby in the bonnet. So silent box or not, it does make noise if you're running heavy duty games.
Let's say that in normal activity the PC doesn't make any noise, OK!
As my mum used to say, when you cook you make the kitchen dirty.
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by Jodrak
Posted on 27 Mar 2020
Bought on 2 Feb 2020 from LDLC
Number of reviews: 43Average rating: 8
It has everything you want except a window
I personally removed all the hard drive cages and the rack for the optical drives. The result is a magnificent space to put two AIOs of 360 and 240 mm! And without any problem. What is missing? some covers for the cable passages maybe, RGB fans, a side window (which can be bought as an option from bequiet)? You can finesse but it's one of the best cases I've seen. All in absolute silence...