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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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  • 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.

Did you find this review helpful? 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

  • Jeremy G.
  • 1/22/2015 6:04:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsBest Case I have ever owned.

Pros: Plenty of room for all pc components lot of ways to manage cable. Great air flow.

Cons: not getting an adapter for the front fans for 4pin plugs

Other Thoughts: none

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  • Zachary M.
  • 1/13/2015 2:26:04 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Case.

Pros: This is a large case with plenty of space for all components. Purchased this case with a large video card, which had 3 fans on it, and there is still space left between card and hdd cage. This case also features a ridiculous amount of fans, and independent control for each of them.

Cons: Case is very large. keep this in mind when purchasing. will not deduct and egg for it.

Other Thoughts: This case is very large, and while there are a large amount of fans, make sure that you have the needed connectors for them. this case features 6 fans using the 3 pin fan connector. make sure your motherboard has that many connections.

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  • bachir e.
  • 1/11/2015 4:47:12 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExcellent Spacious Case!

Pros: Very spacious. I have gtx 970, amd 9590 + noctua 15.
Lots of air flow, excellent temperatures!

Cons: none

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  • lukasz p.
  • 1/1/2015 11:49:43 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggs

Pros: huge case, loads of fans, great cable management

Cons: the paint job.... like other people said it looking like someone painted it in a dust storm

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  • Stacy B.
  • 12/28/2014 8:24:13 AM
  • Tech Level: High
  • Ownership: more than 1 year

3 out of 5 eggsOld 2008 case design, Better new cases out there.

Pros: +Comes with 5 120mm fans and 1 200mm fan
+Side and interior fan expansions available
+12 drive slots
+Side window
+4 filters, 3 in the front and 1 side
+Pretty good airflow due to the extreme amount of pre-installed fans
+Top storage tray was the perfect spot to hold the various thumb drives and my wired 360 controller
+LED's offer a more subtle lighting, and some LED's can be turned off
+Full steel frame that is incredibly durable and lasting
+Plenty of space behind the motherboard for cable routing to get a cleaner interior

Cons: -3 front fan filters require the removal of 16 thumb screws and side panels, which I eventually stopped screwing in half of them because it was too much of a hassle for cleaning
-Case if completely covered in mesh, which although provides better airflow, is fairly difficult to keep clean
-The top of the case has several indentions for aesthetic reasons, but these indentions get dirty extremly easily and are harder to clean due to the sharp acute angles
-Pre-installed fans all seem fairly lackluster and stocky, getting more premium replacement fans is probably best
-Of the 5 120mm fans that came with the case, 3 of them failed and required replacements.
-The individual front fan controller knobs is fairly difficult to gauge which is the higher and lower setting, requiring you to put your ear next to the fans to see which way is louder (faster)
-The top 200mm fan sticks out in an exhaust mesh, gets dirty fairly easily and hard to clean
-Due to how the front fan and drive bays work, there is no modularity in the drive bays to allow for further airflow, and is rather difficult to install new drives
-Due to the full steel frame, case is extremely heavy, about 40-45lbs with components installed
-Window side panel got slightly bent at some point, making it extremely difficult to put on and take off (not necessarily a con of the case itself, but just something I want to mention)

Other Thoughts: I have owned the original case for around 5 years now, with 2 different builds using it.

The original was a beast back in 2008, but is now showing it's age significantly in the beginning of 2015. The new V3 model's only real differences from the original seem to be USB3.0 and 2.5" SSD bottom mount support (I had the ability to buy a 3.5->2.5 adapter, but chose not to). Currently looking to upgrade from this case finally.

The case itself is very well built, but became extremely difficult to clean & maintain. The fan filters are incredibly useful to keep the dust and hairs out of the case, but due to how long it takes to remove all the screws, it became a task I did NOT want to perform very often- especially after the right window panel bent.

Of it's time in 2008, this case was an absolute beast. But nowadays with the HAFX, Corsairs, NZXT Phantoms, and the silent Fractals coming into light, it's really hard to recommend this case (or several other Antec cases, honestly) over the newer brands coming out.

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

  • Karmandeep B.
  • 12/19/2014 7:58:23 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: +Antecs best case



+One of the best looking cases

Cons: you will need to unscrew the drive cages to clean the air filters every few weeks/months, i know big con *rolls eyes*

Other Thoughts: I just wanted to write this review after reading the more recent reviews of this case.


Yes its a heavy case, it's a STEEL FULLTOWER, do these "reviewers" not know what that means? Steel is heaiver but stronger than aluminum, and its a full tower, meaning you have massive amounts of space to work with and never have to worry about room.


This is an old design, yes, its from 2008, v3 is slightly upgraded with a ssd mount and some other minor things, it is not tool-less, heaven forbid you have to unscrew something, you people act like pro system builders tech nerd experts yet get mad when you gotta turn a few screws lol, how often will you upgrade or change a part? occasionally, so the fact its not tool-less isnt a huge deal. Metal screws = more secure lock and fit than plastic tool-less junk.

5 out of 5 people found this review helpful. Did you? Yes No

  • James V.
  • 12/14/2014 6:45:46 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsNot That Good For Gaming Builds

Pros: It holds 9 3.5 Hardrives in 3 removable drive bays plus 3 3.5 spots for DVD/CD. Each drive bay has a dedicated 120mm filtered fan spot. Super Sturdy! With the 3 drive bay fans, 2 120mm rear fans and that massive exhaust fan on the top, cooling is top notch.

Cons: I probably gave this case a good review a couple years ago when I bought it. However, after using it now for 2 and half years and working with other cases I now see the problems.

First, there is limited support for 2.5 SSD's unless you get 3.5 to 2.5 adapters. You can mount 1 with a hokey mount in the bottom of the case.

The case does not provide native support for inside mount 240mm water coolers. Due to the limited space inside the case, I suspect you would have to go external for water cooling.

There really is not a lot of room in this case if you put a couple vid cards and other goodies inside. This is largely due to the way the drive bays are setup with a one piece metal support that runs the entire length of the case. What gaming build today is mounting 9 3.5 HD's ... or even 6 for that matter?

Get ready to fuss with a whole bunch of regular and thumb screws. This thing is anything but tool-less!

It does not support bottom intake power supplies like a Corsair HX850.

Other Thoughts: This is a sturdy and reliable case whose technology has seen its day. Perhaps still works for a multi-drive server build but I suppose there are better tool-less options for that as well. I recently did a new build in a Corsair 750D which is $10 more and it was like night and day. I like it so much better than this case it prompted me to come back and write this review.

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

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Item#: N82E16811129100
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