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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
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Learn more about the Antec Twelve Hundred V3


Twelve Hundred V3


ATX Full Tower
Case Material
With Power Supply
Power Supply Mounted
Motherboard Compatibility
Micro ATX / ATX / Mini-ITX
With Side Panel Window


External 5.25" Drive Bays
Default 3, up to 12
Internal 3.5" Drive Bays
Up to 9
Expansion Slots

Front Ports

Front Ports
3 x USB 3.0, HD Audio In and Out

Cooling System

80mm Fans
120mm Fans
3 x 120mm blue LED front fan with front speed control
2 x 120mm blue LED rear fan
1 x window side panel 120 mm fan slot
1 x middle 120 mm fan bracket
200mm Fans
1 x 200mm top Big Boy 200&tradel blue LED fan
Side Air duct

Physical Spec

20.20" x 8.40" x 22.90"
31.3 lbs.


Maximum video card size: 17.5"/444mm

Perforated front bezel for enhanced air intake

Washable air filters reduce dust build-up in your system

CPU cut-out allows for easy installation of CPU coolers

Top component tray stores your music player, camera and more

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, Internal 1 x 2.5" SSD
Bottom mount also included

Advanced cooling system:
- 1 top 200mm Big Boy 200 blue LED fan
- 2 rear 120mm TriCool blue LED fan
- 3 front 120mm blue LED fan
- 1 (optional) side 120mm fan to cool graphics cards
- 1 (optional) middle 120mm fan to cool CPU or graphics cards
- Water cooling platform for reservoir or pump
- Compatible w/ Antec's 200mm Radiator (designed exclusively for the Twelve Hundred)

Manufacturer Warranty

3 years limited
3 years limited

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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  • N/A
  • 4/22/2014 11:32:15 PM
  • Tech Level: Low
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsheat rises???

Pros: this case has a top fan! if it didnt, all the heat would rise and melt my case!

Cons: heat rises! call the president! i am 6 feet tall. i am so tall that i normally run a fever and my feet are cold!

Other Thoughts: no seriously heat doesnt have time to rise when you have several fans running. only stagnant heat will rise. can you imagine your living room with 3 or 4 giant fans intaking air from outdoors on one side and 2 or 3 giant fans on the other side exhausting air out? if you compared that (TO SCALE) to your computer case it would likely blow you through the room into the exhaust fans and chop you up. its generally warmer on upper levels of a building due to (STACK EFFECT) now why is it colder on top of a mountain??? just buy the antec 1200 already. lol

Did you find this review helpful? Yes No

  • Lemmiwinks0141
  • 4/13/2014 11:24:02 PM
  • Tech Level: Low
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsAlmost completely perfect

Pros: This is my first and (apparently) case I'll ever need. The cooling is incredible and saved me money on a liquid system while the space made my tech-impaired brain extremely calm while putting the PC together.

I was initially worried about the noise that 6 fans would make but I was amazed at how quiet it is even after the 2+ years I've owned it.

As long as you lift it correctly this this is indestructible. (Only weak point is already mentioned it's no good trying to lift this heavy equipment by just the plastic lip/top. I plan on having this case for the rest of my lifetime so long as I don't break the top off or computers don't drastically change in the next 50 years. Even so space allows for custom work.

Space behind motherboard keeps the (display/clear) space relatively clear and clutter free.

If I can do it, literally anyone can so long as you do your research.

tl;dr This is too perfect for a first-timer and could possibly last a lifetime with it's space and solid construction.

Cons: Fans take work to clean. Both side panels need to be removed (unless you plan ahead and only screw in your hard drive(s) on one side which is completely secure I can guarantee.

This thing is heavy which is really a pro for stability but a con if you're short on space.

Top fan is relatively useless and a waste of space/power (as heat rises) would be better off as a simple grate.

As you can tell, no technical/useful cons were listed as it's exactly what I wanted and well worth the price since I intend/expect it to be useful for the next 10-20 years.

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

  • Fragatron
  • 4/13/2014 10:15:58 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsThe best case for air cooling

Pros: I have use this case for several builds for friends/family. It works very well with air cooling with the 6 pre-installed fans. No complaints about the air cooling capacity for this case.

Cons: So as I stated above, I used this case for multiple builds and it works well for air cooling however, not so well for water cooling unless you want to modify everything about the case. Well i got this case for my personal rig a couple months ago. Everything worked fine, I had all air cooling at the time and it was just dandy. Recently, I was going to go water cooling for the CPU (cause the fx8350 gets kinda warm at 1.45v). Anyway i was pushing 85c at full load. I quickly realized that custom water cooling was not very practical in my case (especially since i am using six drive bays and cannot take out them for a front rad). I turned to AIO coolers. I ordered an h100i which i did get to fit but not very well as to being too tall by a hair's width. Now I have an h105 on the way which is about 5mm shorter so hopefully it fits, if not i am looking for a new case.

Other Thoughts: Again, it works GREAT for air cooling. One thing i don't like personally is the placement of the window fan... It obstructs a great view of the GPUS in my system so i took out the plastic and used some electrical tape to hold down the metal grate on the inside.

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

  • N/A
  • 4/11/2014 3:50:17 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

5 out of 5 eggsAwesome case

Pros: First time ever owning a full tower case. Case is awesome !! My main concern was all the fans, that comes with the case being loud, to my surprise case is super quiet, don't even notice it running.

Every fan speed can be controlled outside the tower, front has turn knobs, rear has slide. 200mm fan light can be turned off/on.

Asus board, psu aligned perfectly. All drives, easily installed into bays. I truly enjoy the easy access to drives, in/out front of case.

Tower has lot's of space. Quite happy with new tower.

Cons: Tower is huge, very heavy. Make sure to place tower for easy access.

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

  • Vandurian
  • 3/27/2014 4:55:05 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAntec 1200 Ultimate + corsair H90

Pros: The H90 fits perfectly into one of the front bays after removing the square tubing and leave the front fan. The H90 140 mm fan is about 1mm smaller than the opening, so it easily wages in there and secures however you please.
Great cooling system with my Antec 1200 Ultimate, My Amd quad 3.4 used to run at 60 C, I upgraded it to Amd FX 8 core at same time and now I run at 35 c at same cpu usage.

Cons: Better solid state Hd mounts

Did you find this review helpful? Yes No

  • DoubleA @ Bapcgaming
  • 3/23/2014 10:18:38 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBUY THIS CASE

Pros: I can not begin to tell you how much I love my case!
I have a Corsair 750w psu, dual GeForce 660ti SLI, Corsair H80i water block and 4x8gb Corsair Vengeance RAM and there is still SO MUCH ROOM!

I have read many things about the fans being loud and annoying. I do not understand why people were saying that. I have my tower literally 18" from my face, fans anywhere from low to high depending on what my kids decide to do with them (Looking into the Corsair Link Cooling kit to make that a non issue) and there is minimal sound. One thing people do not mention is the clear side panel has a spot for another 120mm fan. I removed the top rear fan for the water block and took the fan from the back and put it on the side wall as vent. I also took the top 200mm fan and flipped it so it to was a vent. So with very little work I have a very well ventilated case.

Did I mention the front fans have filters that can be removed and cleaned? Yup, take out a couple thumb screws in the back to pop the side panels off and remove the thumb screws for each fan and you have filter access. I know it seems like a lot but after doing it a couple times you can do it in a flash.

I just love this case and all if offers!

Cons: There are three USB ports on the front of the tower and only two can be used stock.

Other Thoughts: The only draw back to this case is the honeycomb side panel. I would rather have a solid clear piece instead. The point of a side panel that you can see through is to see through it.

Did you find this review helpful? Yes No

  • N/A
  • 3/18/2014 6:13:00 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: Simple tough looking case with great air flow keeps my computer nice and cool. plenty of space to work with

Cons: While the case is metal and sturdy the top is stiff brittle plastic and while on my table on its side installing motherboard etc the bit that holds the top on broke. Lucky for me the screw with the huge metal washer didn't fall out while it was running. The top sits on the pc and is functional that's why I only knocked 1 egg off

This pc sits on the ground beside my desk and the dust cover on the top fan has hole big enough for a pencil or paper clip to easily pass through I'm going to have to put something over it to feel safe

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

  • N/A
  • 2/23/2014 6:01:26 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsunbeatable indeed

Pros: amazing airflow. this is one of very few cases that has 3 front 120mm fans. this provides a complete flow of air through your case and across the motherboard. i added 2 secondary front intake fans at the other side of hdd bays which picks up and accelerates the air coming from the front fans. this dropped my cpu temps another 3 degrees. i used zipties to do this and it actually looks very clean. the hdd bays are oriented so the drives mount front to back. this may be a problem for some but this allows a clear path of air(very important) the oem fans are good but after a few months i replaced them all with rfx120bl.

Cons: only con is the 200mm top fan. we all learned that heat rises when we were probably in 1st grade. THIS DOES NOT APPLY IN A MULTI-FAN PC CASE! if you were an insect inside my 1200, you would feel like you were in a hurricane! i tested the top 200mm fan as default exhaust, then as intake, then off. using prime 95 on all 3 tests i only had a 1 degree temp variation which is irrelevant. instead of the 200mm, there should be the option for 2 120mm AND also the option for 2 140mm fans on top. this case isn't very radiator friendly until you modify it. and yes the hdd bays are not fully toolless, just dont put all those thumb screws back in. you only have to put one per side, per bay back in. they wont vibrate loose i promise. if you google around you will find a triple 120mm magnetic fan filter that FITS PERFECTLY on the front outside of this case. use it with the oem filters and it acts as an amazing pre-filter that can be cleaned very quickly and keeps the oem filters cleaner much longer. DEMCiflex makes great custom and universal filters/prefilters. ALWAYS provide more intake cfm than exhaust cfm (positive case pressure)

Other Thoughts: every pc build should be treated like an art masterpiece. dont be afraid to strip your pc down and take your case outside and take a dremel to it. (just plan ahead and do your homework) after completing the window mod and externally mounting an h100i on the back of the case, i feel like this case is perfect now. i have purchased 4 of these cases in the past few years for friends/family builds and always push this case on ppl. TO ANTEC: why did you discontinue the df-85? don't you dare ever discontinue the antec 1200!

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

  • N/A
  • 2/22/2014 4:19:27 PM
  • Tech Level: Low
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsgreat case

Pros: Seems to be very spacious, looks awesome, plenty of fans.

Cons: The two plastic pieces holding the top on where snapped. Apron a rival but I don't think it's going to be a problem because my tower isn't going to be moving.

Other Thoughts: Be sure to check your motherboards for how many fans it can support. Or get a fan control panel

Did you find this review helpful? Yes No

  • Steve
  • 2/15/2014 8:08:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Very sturdy case. A lot of room inside. Well organized and quiet. I spent $150 on another case during my original build, and now wish I had started with this case.

Cons: I'm not big on side windows, but the quality of this case makes it easy to overlook.

Did you find this review helpful? Yes No

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