Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - Newegg shopping upgraded ™

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

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

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • Steel
  • ATX Full Tower
  • Up to 9 Internal 3.5" Drive Bays

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

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

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
Ownership: more than 1 year
Verified Owner
5/ 5
The best air cooled tower case for its size 4/19/2019 2:10:53 PM

Pros: TWELVE 5.25" bays
You need more Pros than that?

Plenty of fans, was nice to have switch controller on the back for the rear and top fans, these days everything is RGB controllers so not much need for the rear switch anymore.

Cons: The 3 USB ports at the top are wired through 2 different connectors, would have been nicer if they were a PCB hub on one connection.

Wish it was a 4-5in deeper from front to back to make room for mounting water cooling radiators between drives and mobo, or SAS RAID expanders.

Overall Review: I wish I could get more of these, it's hard to find a case that isn't a double side by side sever tower or stacking unit to get this many 5.25 bays. I prefer 5.25 because I use Icy Dock Black Vortex for hot swap 3.5" bays, and ToughArmor MB994SP-4S for hot swap 2.5" bays. Great for server builds when you want front accessible drives.

Looking at the Thermaltake W200/P200's going forward since these don't seem to ever be coming back. I'll miss the Antec Twelve Hundred V3. Greatest Air cooled towers I've ever used.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
My Favorite Case! 3/29/2019 5:53:22 PM

Pros: Cable management is a breeze with this thing
Far more than enough drive space to make this a fully blown server with more than enough cooling potential
Room for water cooling if you really wanted to go that route
Very quiet even under load

Cons: None at all.

Overall Review: I would recommend this to everyone who is looking for more bang than a mid-tower. I have owned several and would continue to buy these for future builds.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Great case! 8/7/2018 8:36:09 AM

Pros: + Huge, plenty of room for cable management.
+ Aesthetically pleasing.
+ OOB fans are alright.

Cons: - Front fan was not spinning properly when it arrived. I'm too impatient to return it, so I just fixed it.
- Even with this much space, I had to jury rig the back panel to fit the water cooler radiator.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
4/ 5
A decent case 7/6/2017 9:57:13 AM

Pros: - Lots of storage space inside of this case
- Clearance for CPU coolers and graphics cards is significant enough for most.
- Plenty of fans
- The storage tray on top is actually pretty nice

Cons: - No grommets for cable management and cable management is a bit of a challenge in general
- Depending on how tall your CPU cooler is, you may not be able to use a side fan (recently upgraded and had to ditch mine since my cooler was a tad too tall)
- Lacks 240mm water cooling support despite it's size
- The front panel USB ports use two separate wires. Two of the ports are connected via one wire, and the third port has it's own wire. Both motherboards I've had in this case only had a socket for one of these wires - so one of my USB ports doesn't work on the front

Overall Review: Water cooling is near impossible with this case without doing some custom modifications. An AIO just doesn't seem to fit with the screw holes already in the case. I attempted to mount a MasterLiquid 240 into this, and it just would not align. I suppose I should have done better research, since PC Part Picker claims only 120mm coolers will work with this case, but I'm skeptical that they actually do.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Amazing case!! 7/1/2017 7:49:16 PM

Pros: Tons of space!!

Cons: None

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
6/1/2017 4:11:01 PM

Pros: I like that the front fans have adjustments on the out side and there is plenty of room to expand on the inside

Cons: not a lot off room to hide cables

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
1/ 5
Great looking on the outside but didn't hold up. 5/13/2017 12:15:36 PM

Pros: Looks great from the outside. Love the look of the fans and case.

Cons: A few months after I got the case, I noticed that the bottom fan on the front was not lit up. After further inspection I found that the power cord to the fan just fell out of the fan. After having the case for about a year and a half, the front USB ports started shorting out, I had recently taken off the front cover to compress air out the case so I'm assuming the wires are just starting to come lose from the USB ports. After what happened to the fan it wouldn't surprise me. Finally, the inside of the case is poorly designed. The HD slots are parallel with the case instead of perpendicular, so the cable management is a mess and you have to remove the video card to install/remove drives. Then, when you put the video card in it is pressing up against the cords coming out of the HD's..

Overall Review: I have only written one or two negative reviews in my life. I normally just buy a product and if it is meeting my needs after a few months I give it 5 stars. However, because a case is a major investment and something that you don't often replace unless you have to, I felt compelled to share my experience. Hope I helped someone. Thanks.

0 out of 3 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
4/ 5
Great PC case! Select your CPU Cooler carefully... 4/7/2017 1:51:37 PM

Pros: TONS of room. Very easy component installation. Modular drive bays mean quick access to drives. Even though it has 7-case fans, they are all very quiet. Front fans have variable speed adjustment knobs out front. Overall, very pleased with it.

Cons: This case will not take a Coursair H110i-V2. The rear dual fan screw holes are offset by about 3/16" (wider) making lineup impossible once the fans are mounted to the radiator. Don't believe the YouTube video. Unless you modify the case (drill it out) it won't fit. Went with a Be Quite Black Rock fan cooler. It fit perfectly.

Overall Review: Would have really liked to install the liquid cooler. Maybe publish a list of compatible cooler hardware. Also, since the case come with 7 fans, maybe include a couple "Y" cables for motherboards limited number of fan connections. The all steel case IS HEAVY(expected). This is not some mamby-pamby case. It's a piece of furniture! Make sure you have room for it.

3 out of 3 people found this review helpful. Did you?
ICON Loading...
Selected Items
  • Add to Wish List Found on 1 wish list
Are you an E-Blast Insider?
Subscribe Newegg e-Blast

Condition Guidelines

The following guidelines apply to all product categories unless otherwise indicated within specific categories.

  • New : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty.
  • Refurbished : This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.
  • Open Box : Newegg only guarantees your receipt of the Open Box product with the purchase of this item. Any accessories MAY OR MAY NOT be included. Newegg will NOT send you any missing accessories, even if it is required to use all of the item’s functions.Open Box items usually do not come with manufacturer or vendor warranty or technical support. However, warranty support may be available if an item was never registered by a previous owner. Please contact the manufacturer to check.
  • Used - Like New : This means that the product has been opened, possibly used but is in perfect condition with no signs of cosmetic or functional defect. Product may includes warranty, and accessories found with the original product. Product may or may not be in the original packaging. Returned items with minor packaging defects fall under this category.
  • Used - Very Good : This means that the product has been opened, may show slight signs of use and cosmetic blemish, and may be missing minor accessories, but remain in excellent condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Good : This means that the product has been used, may show clear signs of use and may be missing minor accessories, but remain in good condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Acceptable : This means that the product shows clear signs of use, cosmetic defect, and may be missing minor accessories and manual, but remain in working condition. Product does not come with warranty unless stated otherwise in product description. Functionality issues beyond signs of use should be disclosed in product description.
Price Available at Checkout
Why can’t we show you details of this product?

Some manufacturers place restrictions on how details of their products may be communicated.

If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.