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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 2.0
    • 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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  • Donnie E.
  • 12/15/2014 7:53:02 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Case / Upgrade

Pros: Used this case for my newest build because I had such a good experience with the Antec three hundred Illusion case. Antec will be my go to brand for cases from now on.

Cons: NONE

Other Thoughts: NONE

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  • Robert T.
  • 12/13/2014 12:07:48 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsMy Favorite

Pros: Great cooling, quiet fans and front ports that are not behind a door. This is my second Antec 900 updated for usb 3.0.

Cons: No front firewire port on the front, it's blanked off.

Did you find this review helpful? Yes No

  • William E.
  • 12/10/2014 7:51:48 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsDid they fix the buzzing front head port audio?

Pros: I have 2 of these cases that I've used for pc builds. Wire management was good, lots of space and everything felt durable.

Cons: I'm not sure if this issue has been fixed but there is a feed back problem with the audio on the front header ports. For instance if you use a headset from there you'll constantly hear a buzzing going up and down as power draws. There's quite a few posts on the net with people more knowledgeable than me who have diagnosed the problem and fix via re-wiring & soldering.

Most disappointing is I requested a replacement header port a year ago (December 2013). I've traded emails with Antec support (tickets) where I've constantly been told the replacement parts are not in stock yet. But yet they continue to buld brand new cases so I suppose they are just blowing me off and have no intention of sending the replacements.

Other Thoughts: The run around on the replacement parts will have me looking elsewhere as I'm planning 2 new builds currently.

2 out of 2 people found this review helpful. Did you? Yes No

  • William I.
  • 12/10/2014 7:15:23 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsFabulous Case, but...

Pros: (Giving this a 3.5)...Outdated case. I've owned the Twelve Hundred for roughly 7 years, and the case (or tank as I like to call it)is bullet proof! Since I was no longer in need of a full size tower, I opted for it's small brother Nine Hundred.

The Nine hundred is still an extremely well made case, but it needs updates (see cons).

- Solid build quality. Still the tank I've grown to love
- Plenty of airflow, great for overclocking
- Adjustable fan speeds, though you have to access internally
- Easy machine to work/build with. Plenty of room for multiple monster video cards.

Cons: - Drive bays, solidly built, but still difficult to remove. Have to access both sides of the case.
- Front grilles are a PITA and must be removed, 2 screws on inside of case, to get to airfilter and drive bays. The Twelve Hundered just popped out.
- No SSD bays, still have to use the adapter.
- Little room on the back side of the case for cable management.
- Did not come with airfilters, had to use my Twelve's.

Other Thoughts: - Did not easily fit my CORSAIR Hydro Series H100i Extreme Performance Cooler. I was able to mount the radiator to the front intake fans without any cutting/welding/botching. Not a CON but just buyer beware.

Overall, the case is outstanding and will last me many years, this thing is still bullet proof. I hope that Antec releases an updated version to modernize this case. Would I recommend for others? Simple answer, yes, but I would caution them on some of it's flaws. 3.5 out of 5.


Intel i7-5930K
G.SKILL Ripjaws 16GB DDR4 3000
EVGA GeForce GTX 980 Superclocked
x2 Samsung 840 EVO 250GB
Antec Nine Hundred Black Steel ATX Mid Tower
CORSAIR Hydro Series H100i Extreme Performance Cooler
BenQ BL3200PT 32" WQHD (2K) Widescreen

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

  • Paul Z.
  • 12/5/2014 5:47:28 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAWESOME

Pros: Best cooling case on the planet, filters catch enough dust to roll it off like a carpet. Quite for being a wind tunnel! Looks sweet!! Has a gall darned trey on the top of it to set things on! My cat enjoys airing his but out on the huge top exhaust fan.

Cons: finnaly lost a front 120mm fan, wich is not bad for 3 years continuous duty. Spilled a huge cup of coffee right on the top exhaust fan yet there was somehow zero damage to anything? I'm assuming this aweseome fan slowed the spilling coffee down to zero G's and safely floated the droplets off to the side where they re engaged with earths gravity and fell safely to the floor.

Other Thoughts: this has been running 24/7 for 3 years, I believe this may be the pinnacle of full tower design. I use it as a nightlight, the huge spinning fan on top casts a gigantic shadow on my ceiling that is out of this world.

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  • Sean C.
  • 12/4/2014 8:52:09 AM
  • Tech Level: Somewhat Low
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsCase is Otherworldly

Pros: This case represents such a significant upgrade over my prior tin box in every way that no comparison exists. Nearly everything fell right into place although installing the Sapphire R9 280X card presented a few challenges but those were overcome.

Cons: Major con is I installed a Gigabyte Z97X-UD5H mobo and the case's 200mm fan connector is about 8 inches short of reaching the Fan 4 connection on the board. I'd love to know where to pick up an extension because I really want to connect this fan.

Otherwise, as others have posted, cable management diminishes the use of the window since all one can see are the cables.

Did you find this review helpful? Yes No

  • Joshua G.
  • 12/3/2014 3:03:06 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsGreat case and still using 6 1/2 years later

Pros: I bought this case (minus USB 3.0) from Best Buy in early 2008 for my first build-from-scratch build. I'm still using this same case today. That is because I've had no need to switch to another case. That's also one less expense to worry about when upgrading.

- All fans still work as normal (though one has one of the blue LEDs out, which doesn't bother me a bit). I added one to the side panel and it's a great inlet for air right onto your video card(s)
- I've had no problem with all components staying cool
- I've had no issue with video cards fitting thus far. So far, in this case, I've used x2 8800 Ultras in SLI, an EVGA GTX 570 Classified, An EVGA GTX 770 SC, and now an EVGA GTX 970 SC. All fit fine, you just may not be able to have an HDD in the slot right behind your card.
- Sturdy and well-built

Cons: - Not much of a con for me, but figured I'd mention it. The one I have, there are only two pre-made holes in the motherboard tray for cabling. So during my first upgrade with the case, I made more holes for easier, better cable management.
- I saw that other people complained about this, but I had no issue hiding extra cabling on the backside of the motherboard tray.

Other Thoughts: This is a great time-tested case and I will stay with it as long as it does what I need it to.

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  • Greg S.
  • 11/29/2014 4:30:42 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGreat Case

Pros: Lightweight compared to most cases, looks fantastic, after 2 years of having it everything still works.

Cons: Might be a little tough putting in some of the new graphics cards, specially the gtx670s and what not. I have a gtx 570 and let's just say it barely fits.

Other Thoughts: I would definitely recommend getting this case, if your like me who builds my own gaming computers this will do the job. This is a case meant for the average computer builder, if your thinking about building a big gaming rig, the case size is questionable. As I said before make sure you know your graphics card measurements before you buy. Barely fits my gtc 570

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  • Neill R.
  • 11/28/2014 7:08:21 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsElegant, simple beginner case

Pros: For the price it is offered at, this case is one of the best of its class for beginner builders. The interior is spacious, the exterior is elegant and impressive, and the fans and connections are more than enough for everyday use.

Cons: Wire managment is quite a pain, especially when only a semi-modular power supply is used. There is hardly any space behind the motherboard to route wires in an organized manner.

If I remember correctly, I also had a bit of trouble during the building process because plugins for power buttons and other front jacks were not adequately labeled, so a bit of wire tracing had to be done to make sure I wasn't plugging things in to the motherboard incorrectly.

Other Thoughts: Other than the minor issues mentioned in the con section for building a computer, I have had nothing but good experiences with the case in the 2 years of my using it. Even with wires occasionally making unsightly journeys, airflow is hardly hindered and overheating has never been an issue for any part inside. Opening up the case and modifying the computer, whether it be adding a SSD or a wireless card, has always been a plesant and struggle-free experience.

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  • Charles L.
  • 11/26/2014 3:26:16 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsNot Great

Pros: Plenty of Room for a Good GPU, USB 3.0, Good Cooling

Cons: Hard drives are a royal pain to remove and replace. Front grills are prone to moving around even when tightened as much as possible.

Did you find this review helpful? Yes No

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Item#: N82E16811129021
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