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Item#: N82E16811129021

Antec Nine Hundred Black Steel ATX Mid Tower Computer Case with Upgraded USB 3.0

  • Steel ATX Mid Tower
  • 2 x USB 3.0 / Audio Front Ports
  • 1 x 120mm TriCool rear fan with 3-speed switch control
  • 2 x 120mm TriCool blue LED front fans with 3-speed switch control to cool HDDs
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Antec 900 Ultimate Gaming Cases

Antec Nine Hundred

The Most Versatile Gaming Case Ever!
Ultimate gamer case? You bet! With a partially perforated package that still finds room for four huge yet quiet fans, you have a seriously cool gaming case, and that's no joke. You can expect the Antec 900 to be ready for lift off, especially with the 200mm TriCool exhaust fan and perforated port atop this stylish case. Even mount a 120mm fan on the side panel! Contrary to some expectations, this case is extremely quiet, unless you have all the fans going at their highest settings, at which point you might hear...something.

The 5.25" bays will hold optical drives, burners, or even (gasp!) your aging floppy drive, and up to six 3.5" drives can be installed in cages behind the fans, arranged along the front any way you like. This case provides a plethora of possibilities, with room to explore new configurations of all the pieces. The PSU, in a departure, is at the bottom of the case, for better stability and thermal environment for the CPU.

The side window on the case, in addition to letting you show things off, provides additional ventilation, either by way of the vented screen or by the fourth fan in the box mounted into plastic for a clear and elegant installation. This is a sturdy case built of steel, with enough cooling technology to keep things frosty in the hottest action. Take one home today and build yourself the "coolest" rig around!



Antec Nine Hundred
  • Unique Top mounted 200mm "Big Boy" TriCool exhaust fan cools the hottest systems
  • Perforated front bezel for maximum air intake
  • Two front loaded HDD cages for up to 6 hard disk drives
  • The HDD cages act as air ducts to take air in more efficiently. Optional middle 120mm fan bracket cools the hottest graphics cards or CPU
  • Two 120mm TriCool blue LED front fans cool hard disk drives
  • Window side panel comes with an optional 120mm fan mount for maximum VGA cooling
  • Top tray for your MP3 player, digital camera, etc.
  • Power supply mounts at the bottom of the case (power supply not included)
  • Advanced Cooling System:
    • One top 200mm TriCool fan with 3-speed switch control
    • One rear 120mm TriCool fan with 3-speed switch control
    • Two front 120mm special black TriCool lue LED fans with

    Three-Speed Switch Control Cools HDDs
    • One side (optional) 120mm fan cools graphics cards
    • One middle (optional) 120mm fan cools CPUs or graphics cards
  • Nine Drive Bays
    • Three External 5.25"; Six Internal 3.5" for HDD, or
    • Six External 5.25"; Three Internal 3.5" for HDD, or
    • Nine External 5.25"
  • Maximum Video Card Size: 16" (406mm) (Note: some video cards may require removal of the adjacent hard drive cage)
  • Compatible Motherboards: Mini-ITX, microATX, Standard ATX
  • Seven Expansion Slots
  • Top mounted I/O ports
    • Power and reset buttons
    • Two USB 3.0
    • Audio In and Out
  • Unit Dimensions (HxWxD):
    • 19.4 x 8.1 x 18.4"
    • (49.3 x 20.6 x 46.7cm)

What's in the Box

Antec Nine Hundred


Learn more about the Antec Nine Hundred

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the Antec Nine Hundred

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  • Philippe L.
  • 7/22/2015 10:16:53 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsReally Happy With This Case

Pros: - Looks really strong
- Plenty of Fans (4) with the possibility of adding two more
- LEDs!!! I like blue! (Goes with my transparent controller with blue LED as well)
- No more hassle from pre-made PCs, this tower has plenty of storage slots (3 for external devices, 6 for HDDs, SDDs, etc.)
- PSU is placed at the bottom of the tower
- Fans are quite quiet!
- Did I mention the ability to customized (removable trays)
- Side Window (although it it on the side of my office desk)

Cons: - You have the control of the fans speed, the problem is that they are horribly place within the case. So it is pretty much a game of hide and seek with the controllers IF you want to change them.
- If you have a HUGE (I mean long) GPU, you will have to remove the fan extension bay as it is pretty much in the way (I have an ASUS STRIX GTX 970)
- Two fans were not working when installed. I had to remove the bays and look to see what was wrong. Thankfully, it was only because one fan was not properly pushed (thing I did) and a wrong set of speed on the top one. They are all working now and I didn't need to send it to repairs.

Other Thoughts: I am currently using a mATX motherboard, which I can live with until my next upgrade. Mine has only 3 fan headers, problem that I easily solved buying a splitter.

This tower is an absolute delight when you consider that I was building a new computer in a mid-sized HP Tower. I do not regret my buy... not a bit!

Some people complain about the fact that it is missing a dust filter. I totally do not need it as I am working in a fairly clean environment.

Others may complain about cable management... when you take the time to arrange it well, it works fine!

In conclusion: If you are a really laid back gamer and builder like me, this will fit your need more than requested.

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  • Ryan K.
  • 7/21/2015 3:07:18 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat case

Pros: -It's blue LED fans keep my room lit. Dissipates heat from my fx 8370 and r9 390 well.
-Fans in the front can be moved to help you fit what you need to fit into your case.
-Fan blocks also hold the hard drive slots, allowing for cooling on your drive (I guess?)

Cons: -No dust filter. I noticed that was something that some newer style cases are going with

Other Thoughts: My usb 3.0 slots on the front are not working, I suspect it's due to a driver issue since my motherboard 3.0 slots do not work either.
Would recommend this case

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  • Carlton C.
  • 7/19/2015 4:10:43 AM
  • Tech Level: Average
  • Ownership: more than 1 year

1 out of 5 eggsWas good for its time.

Pros: Decent air flow with minimal HDD/SSD in the bays.
Side fan that can sit next to the GPU.
Lots of fans came with it.
USB 2.0 slots, on/off switch and reset button still work.
Bought it in 2008 and still use the fans but in a different case.
That's about it.

Cons: Fire Wire port stopped working.
Both headphone and microphone ports stopped working.
Hard to clean because it has so many screws and its worse if you have more than 2 HDD's.
Wire management is pretty much non-existent.
Collects dust like a vacuum cleaner.
If you have three 3.5" drives in one or both bays you might as well disable the fan/s because its not going to do anything.
To get to the 200mm fan is much harder than it should of been.
Almost impossible to put the top left screw in for the motherboards with the 200mm fan installed.
The 200mm fan beaks easy if you are not carful. (Didn't have this problem but many people did)
Wish the fans where PWM type so I can control the speed easier instead of opening the case up and change the speed of the fans.
Can't use high profile coolers with side fan installed.
Can't use really high profile coolers (Noctua NH-D15 size) unless you remove the side window.
Very little room for a 120mm radiator for AIO liquid coolers .
Can't install a 200mm radiator unless you do a lot of modifying then it may fit.
Might not be able to fit a tri-fan GPU unless you move the 3.5" rack forward then front of the system looks silly because you will have that rack sticking out like a sore thumb.

Other Thoughts: I'm surprised how long I put up with this case. I own a 540 Air with 3 of the fans in that case and couldn't be happier.
There are so much better PC towers out there for the same price and reading some of the reviews, the control panel isn't much better. Still have the same problems I have. If this case was $40 then maybe but not over that price. Not anymore.

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  • Kyle M.
  • 7/10/2015 10:24:03 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsLook before you leap

Pros: Solid case with great airflow, I was pleasantly surprised at just how sturdy the case was considering the price.

Cons: This is where things became frustrating for me. I migrated my old setup from an old tj-10 case which had offered plenty of unneeded room for my setup, so decided to downgrade to a midsize tower that could accommodate an large format card (gtx 970). After transplanting my old components to the new case I was very upset to find that two of the four fans did not work (my fault for not testing first). The screws provided for the drive bays do not work with the standard 2.5 mounting treys, I had to modify the holes on the treys to just mount them. To top things off, there wasn't enough room without doing some serious rearranging/modding to plug in the 24pin connector to my motherboard (p67) which is a side plugin.

Other Thoughts: The bottom line here is the case itself is of fairly good quality with a few design flaws. I purchased this product knowing full well I was purchasing a midrange, midsize tower that may contain a few flaws and was upset to find out that this case could not accommodate 3 hard drives, a mobo, and a graphics card without some serious engineering.

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  • Shawn V.
  • 6/27/2015 3:32:55 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood Case

Pros: Good case when coming from Dell XPS 8500 series. Plenty of fans, plenty of space. Fans are very quiet and come with individual 3 speed controls. This reduced my heat problems coming from my old case drastically.

Cons: The opposite panels does remove, however there is limited use in this with little space behind the MOBO mount and the panel itself. There are cutout holes spaced far away. Don't look to make this a cable management location. I did not need it, not displaying the contents of my desktop as it's tucked under the workspace, however, I could see if someone wanted the look how it may discourage them.

Other Thoughts: overall for the price, great case. Some have complained about easily scratched plexiglass and DOA I/O boards. I have had NO issues with either in about a month. I wouldn't mind some sort of fan filter for the top as it is a direct drop into the case, but that is a trivial issue for me.
Just a thought, if your MOBO doesn't support the four fans that are pre-installed (great one month in, BTW) you'll need to get some inline power adapters or splitters when you order the case.

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  • William F.
  • 6/26/2015 3:41:45 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCouldn't Be Happier

Pros: -Great Looking Case
-Easy Setup for Transferring/Building System
-Lots of Space for cables and components.
-Ridiculously Good Airflow
-Tray at top is great for keeping track of multiple usb's for plug and play

Cons: -There are really no directions included with the case and the one on the website is not very straightforward/lacking information. Makes it a bit harder for a first time builder. (i.e. directions say use a screw, but don't tell you which one or which hole to use)
-Cable management was a bit challenging, however this was my first build so I may not have used the best method.
-I like the USB 3.0's on the front; however after going from a case with multiple ports, I found myself missing the extra ports.

Other Thoughts: After researching multiple cases I decided on this one and I have to say I am happy I did.

I transferred the components of my stock computer to this case as a base for upgrading my system. This is the first system I have personally build so the cons stated above may not apply to someone with more experience.

Overall, the setup was fairly straightforward and the case looks great. If given the chance to go back, I would still choose this one. Great purchase at a great price, I definitely would recommend.

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  • John D.
  • 6/25/2015 6:51:52 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Case. Great Price.

Pros: Fit a full ATX case, gtx 970, and with the fans all set to high/med.. I can't barely hear them.

Cons: Not particularly a huge fan of the removable trays that the HDD's are supposed to be mounted in, but they work.

Other Thoughts: I'd recommend it. Just keep in mind you may have to remove a tray in the middle for a long gpu.

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  • Ramesh K.
  • 6/24/2015 9:25:42 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsNot a bad case

Pros: Loads of fans which allows massive amounts of air flow. With all these fans going, I still cannot hear them when running.

Cons: The power button is rather cheap. With all these fans built in the case, they should send two in one pigtail adapters. My board only has three fan plugins.

Other Thoughts: If you purchase this case, I would suggest buying the two in one pigtails. It just makes build easier.

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  • Anonymous
  • 6/21/2015 11:29:06 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

4 out of 5 eggsFANTASTIC airflow

Pros: great airflow. made my build more extremely more quiet than when it was in my old cooler master haf 912. very easy bay removal and case fan installation

Cons: little to no room for cable management, but if you fiddle around with zip ties you should be able to figure something out.
not really a con, just a feature I like, but the easy hard drive installation rails don't work, you gotta screw your hdd or ssd into the mounts. Also, the bays can't come out like in other models (like the haf 912) to increase airflow

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  • Daniel O.
  • 6/12/2015 8:39:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsAn Oldie but a Goodie

Pros: The wire management for the fan assemblies has improved over the years. I had an antec nine hundred for over a decade, and with so many rebuilds I eventually sheered one of the fan wires, and from then on it was under constant repair. I also thought one of the fan bearings was going out, (though it turned out to just be a loose grill plate, upon cleaning it later after the fact). It got really dusty, and I got really lazy besides, so I decided it was time to upgrade. However, regardless of the newer more advanced cases for the money I still landed with this model out of familiarity and proven reliability, (but still with the $60 after $20 MIR bottom line). The USB 3.0 ports are sweet, as are the more updated power connectors. I love this case. I still kept the other one for another build.

Cons: It could use a 3.5" to 2.5" adapter... its time. It does have a mount on the bottom of the case (SSD to the bottom of the case) between the power supply and front bottom fan, but that puts it far from a single power chain on a modular power supply...sort of a phoned in effort there.

Other Thoughts: Random: the Cool Master Hyper 212 EVO CPU heatsink and fan fit, but not well enough to allow the use of a side case fan. Whatever though, the case is a freaking wind tunnel as it is.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16811129021
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