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Item#: N82E16811129100

Antec Twelve Hundred V3 Black Steel ATX Full Tower Unbeatable Gaming Case

  • Steel
  • ATX Full Tower
  • Up to 9 Internal 3.5" Drive Bays
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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The Unbeatable Gaming Case
Antec's Twelve Hundred V3 gaming case combines maximum performance, cooling and compatibility in a full-tower package. Thirteen drive bays, space for graphics cards as large as 17.5", a CPU cutout, an internal 2.5" SSD drive mount, and newly integrated USB 3.0, all come together for a robust foundation for your components. The Twelve Hundred V3 features a top Big Boy 200™ blue LED cooling fan, two rear blue LED 120mm fans and three front blue LED 120mm fans. Apart from standard size power supplies, the Twelve Hundred V3 can accommodate Antec's CPX form factor PSUs. Outfit your components and maximize their performance with Antec's Twelve Hundred V3.


Twelve Hundred V3

Unbeatable cooling system, including a top 200 blue LED fan and five 120mm fans

Twelve Hundred V3

Convenient top accessory tray and front mounted USB and HD audio ports

Twelve Hundred V3

Filtered front panel takes in air efficiently and prevents dust buildup

Twelve Hundred V3

Stylish windowed side panel lets you show off all your hardware

Twelve Hundred V3

Front Panel USB 3.0 port


Model Twelve Hundred V3
Case Type Full Tower Case
Color(s) Black
Cooling System
  • 2 rear 120mm blue LED exhaust fan
  • 1 top 200mm Big Boy 200&tradel blue LED exhaust fan
  • 3 front 120mm blue LED intake fans with front speed control
  • 1 window side panel 120mm fan slot
  • 1 middle 120mm fan bracket
Drive Bays
    13 Drive Bays:
  • External 3 x 5.25"; Internal 9 x 3.5" for HDD, or
  • External 6 x 5.25"; Internal 6 x 3.5" for HDD, or
  • External 9 x 5.25"; Internal 3 x 3.5" for HDD or
  • External 12 x 5.25 for HDD
  • And internal 1 x bottom-mounted 2.5" SSD drive
Front Ports 3 x USB 3.0
Audio In and Out (AC'97 and HDA compatible)
Expansion Slots /
Video Card Size
7 Expansion slots
Maximum video card size: 17.5" (444mm) (Note: some video cards may require removal of the adjacent hard drive cage)
PSU Not included
Motherboard Support Mini-ITX, Micro-ATX, Standard ATX
CPU Cutout Yes
Cable Management Yes
Side Panel Features 1 Window side panel 120mm fan slot
Dimensions (H x W x D):
  • Unit Dimensions
  • 22.9 x 8.4 x 20.2"
  • (582 x 213 x 513mm)
  • Package Dimensions
  • 25.6 x 11.8 x 23.6"
  • (650 x 300 x 600mm)
Weight Net Gross: 31.3lbs (14.2kg)
Gross Weight: 38.6lbs (17.5kg)
Special Features Powerful cooling system with large 200mm top-exhaust blue LED fan, two 120mm intake fans and one rear 120mm exhaust fan
Stylish, perforated front panel includes fan control knobs plus built-in washable air filters to minimize dust intake
Seven expansion slots to support multiple graphics cards, including NVIDIA 3-way SLI®
CPU cutout allows for easy installation of CPU coolers
Maximum video card size: 17.5" (444mm) (Note: some video cards may require removal of the adjacent hard drive cage)


Twelve Hundred V3 Twelve Hundred V3 Twelve Hundred V3Twelve Hundred V3

Learn more about the Antec Twelve Hundred V3

Quick Info


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

Customer Reviews of the Antec Twelve Hundred V3

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  • david m.
  • 4/24/2015 3:35:08 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsantec 1200 case

Pros: This case is has plenty of airflow. filters to slow down dust. has plenty of room

i do recomend this case if you are building new computer with a large gpu

Cons: really none that i didnt know when buying this case its really large thats about it

Did you find this review helpful? Yes No

  • Craig M.
  • 4/9/2015 9:07:41 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsOverall Great Full Tower

Pros: This case is an amazing full tower, lots of airflow and plenty of room.

-One of the biggest pro's for me is the convenient amount of space for cable management behind the mobo, I have had some cases that are just too much and some that are too little.

-Adjustable fan speed comes build in and works like a champ. I like to have all my fans hooked up to a power supply and not control them from the motherboard so this is amazing.

-Very sturdy case: I love the fact this case does not rattle and the rubber grommets on the bottom make it very convenient to put on hard surfaces without scratching them.

Over all an amazing case as long as you read the parts it comes with and plan accordingly (see other thoughts)

Cons: Some may say its too heavy but its a full tower so I fully expect that.

Fans on full speed move a lot of air, hence a little noise from the airflow, but again if you buy a case with 6 fans stock you probably are not going for a silent rig.

Other Thoughts: Couple things to consider:

- This case has a bottom mounted SSD spot, with a very very large PSU I can imagine this would be an issue. If you have a few solid states or like to have them all mounted in a bay you will need to get a 2.5 adapter kit. No biggie though

-Liquid Cooling: This is my fault for not looking but keep in mind, yes there are 2 120 fan slots in the back but they do not fit a radiator. I had to do some custom work with a dremel and drill but a CORSAIR Hydro H100i radiator WILL NOT fit on the inside of this case with the stock holes. Not worth an egg but it was something that frustrated me. (some radiators may fit but mine did not so do some research and ask around if you are using a dual fan radiator)

Last but not least, keep in mind that all these fans come with 3 pin connectors and no adapter for going directly to a power supply. Again not worth an egg but something to be mindful of.

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

  • william l.
  • 4/8/2015 7:08:47 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: very nices case with lots of room and moves lots of air. ssd location is ok.

Cons: has 2 120mm fans on back but u can not fit a 240mm watercooler in same spot.

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

  • 4/8/2015 6:01:33 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

3 out of 5 eggsIt's alright.

Pros: The thing is HUGE. It'll fit everything you've got and then some. In addition, it's got a TON of fans, and half of them are filtered. It does a good job at keeping any components inside cool. Bottom mounted PSU is great. LOTS of drive bays, plenty of room for a ton of hard drives. Good cable management options.

Cons: The filters for the fans are a pain to remove. As in, most of the time you won't bother. You see, in order to do so, you have to remove ALL of the hard drive bays. The top 200mm fan is, like most all 200mm fans I've dealt with, unlike any other on the market, so replacing it is a pain. In fact, replacing the front fans is a huge pain. I'd know because I've replaced every fan in the thing (they were blue, I wanted red.) and it literally took me all day to do. Most of the time was spent on the top 200mm fan.

Other Thoughts: I've owned mine for many years, and it's done a decent job of doing what it's supposed to do. I even added a couple of 80mm fans to the side panel with no issue. I ended up taking out the filters because they ultimately hurt more than they helped. I've never had an issue with a part being too large. I even fit an upright 120mm CPU cooler in with no issues.

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  • Ethan F.
  • 4/4/2015 10:28:10 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsPoor Quality

Pros: Lots of fans.

Cons: System still overheats (not overclocked), cages do not fit well, covers pop off, case sides do not fit well.

Did you find this review helpful? Yes No

  • Larry F.
  • 3/4/2015 12:51:02 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsAntec 1200 V3

Pros: Great case with lots of fans that moves quite a bit of air over the motherboard/graphics card. Even though the case a Steel/Plastic combo, it seems extremely well built and don't foresee myself ever having to replace this case.

Cons: No cons, I love this case.

Other Thoughts: The only thing that should be made known is that the fan pinouts are the standard 3 pin, but don't come with any type of adapter but doesn't warrant taking an egg off.

Did you find this review helpful? Yes No

  • GIFT R.
  • 2/28/2015 3:16:01 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood Case

Pros: Good construction with plenty of fans and airflow. All the open space and extra drive bays are really nice.

Cons: Nothing major.

Other Thoughts: This is a really good case and if i build another computer i would buy another one. I couldn't give it a perfect score because of one minor thing. The mounting for the 2.5" drive is almost under the power supply. Antec includes a 5.25 to 3.5 adapter but they should really include a 3.5 to 2.5 adapter.

Did you find this review helpful? Yes No

  • Brytt B.
  • 2/22/2015 11:37:14 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood unique case

Pros: Huge case, lots of room! Not to mention, I just love Antecs cases, they are all so sick looking! Good airflow. I especially like how the back goes on! Unlike most cases, it doesn't have a bunch of sliders you have to put in THEN slide the back on. You put the front in, then can close it like a door and screw it in. Makes it SO much easier when you have a ton of cables! Also, REALLY easy for quick weekly cleaning.

Cons: Front (other thoughts)

Other Thoughts: It's not necessarily a bad thing, but the front is quite different than most cases. Instead of the whole panel coming off, the drive bays slide out through the front in squares. Takes time to get to know how it works when migrating hardware over, but nice. The only 'bad' thing is since the bays slide out from the front, you have to disconnect all the HDDs, etc. to fully pull it out and get in there.

Did you find this review helpful? Yes No

  • Daniel B.
  • 2/8/2015 10:15:21 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsBest case I've had so far

Pros: -Fans are fairly quiet.
-PLENTY of room.
-Great airflow.
-Well placed blue LEDs.

Cons: -HEAVY. Expected this when I bought it though.
-Fans and removable filters are kind of hard to get to to clean.

Other Thoughts: I've had this case for over 3 years now with 2 different builds in it. Couldn't be happier.

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

  • kevin v.
  • 2/2/2015 9:37:34 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood tower case, but rebate was refused

Pros: Case has lots of room and price would have been good if they had honored the rebate. I like the large fan on top. Note all fans are blue... Also consider purchasing a fan controller or hub if you want to use all the fans. Looks like five different connections...

Cons: Did not honor the $30 rebate because it was one day late. I purchased this case because of the price with rebate, otherwise would have gotten a different one. :-(

Other Thoughts: Advertised a $30 rebate. I did not have time to assemble the computer components right away. I then got it together and was able to ensure the case and other components were working. Finally submitted and mailed the rebate requirements, but we had terrible snow storm, and mail was not picked up. Took it directly to PO and was postmarked one day late, but antec rebate center refused it as result. There is also no way to contact them via rebate site, so I would suggest do NOT rely on any rebates unless you process and mail everything very quickly. They only give you a 30 day window from purchase (not from when you receive it of course) Depending on shipping options, you may lose a week just waiting for delivery, and not enough time in my opinion unless you act quickly. Yes, it was my fault for not strictly meeting the requirements, but would be nice if they had some tolerance. Rebates are already a huge hassle to process! I always try to make sure components are working before mailing rebates in case a RMA/return is required.

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

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Item#: N82E16811129100
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