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Antec Twelve Hundred Chassis - TWELVEHUNDRED

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5 out of 5
Total Reviews
Overall Satisfaction
Ease of Use

awesome in every way... but it's not tool-less

by on 8/10/2008

PROS: I switched to this from a Raidmax Smilodon mid tower, and dropped 12 C on my graphics card (heat-plagued Asus EAH3870 TOP, down to 117 C from 127 C). While my Tuniq CPU heatsink still prohibits side fans as it did in my Raidmax case, the internal 120mm VGA fan makes all the difference. I also dropped 5 C on my Phenom 9850 @ 2.875 GHz. There is plenty room between adjacent HDD slots for decent airflow, with a fan in front of each cage making great use of this tunnel. This case has excellent cable management: you can route all the wires between the mobo tray and right side panel and send them back through strategically-placed slots right where you need them, leaving the slack in the side panel abyss. No more will your PC be a nest of wires where it matters. Like everyone says, the fans are quiet, although high is just a tad loud for me... I'm keeping mine at medium for now. It has rubber power supply feet to absorb vibration. There are absolutely no sharp edges and no crevices where dropped screws can hide. .............................. CONS: Do not purchase this case if you're afraid of screwdrivers or thumbscrews... nothing is snap-in in it. Each side panel has two thumbscrews, each drive cage has eight thumbscrews, and each drive has four normal screws. If you need to pull your drives out on a regular basis, this is not the case for you. The drives cannot be removed without pulling out the cages they are mounted in. Also, be aware that if you use all 3 front 120mm fans and cages and plan to clean the filters regularly, there's 28 thumbscrews to deal with. The fan filters are more rather screens than filters... all in the name of airflow, I suppose. The pictures in the manual are too dark to see much of anything, not that anyone needs instructions. The external 3.5"" adapter and faceplate took a little trial and error to figure out, but they work. Be mindful of your screwdriver... the inside is black and likes to scratch. The front audio jacks are unmarked, you'll have to remember which is which. Nothing serious. .................................................................................................................. OTHER THOUGHTS: It took me around 2.5 hours to move everything into this case, after all my cable management trial and error. Only my 4-pin power connector was too short to go behind the tray, everything else was easily long enough. Once this case is loaded up, the rubber feet will make it difficult to slide on carpet. This case is just wide enough to prevent me from pushing my chair under my desk... make sure you have room wherever you plan on keeping your machine. Keep in mind if you plan on using many hard drives, the internal VGA fan cannot be mounted on a cage that has drives in it.

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This box is HUGE!

by Ransx77 on 10/1/2008

Just finished building a machine using an Antec nine hundred, now I want to build a twelve hundred. $50 less at than at the Egg, and came with free shipping, it was a no brainer. My ONLY complaint is that Antec should include the window side fan instead of making us buy that seperately. But I knew that going in, doesn't change anything about what a great box this is. Comes with 6 fans, you can add another on the window. This box breathes!!!!! Lot's of build room inside, including ability to hide cables between the non-window side wall and the side cover. Make sure to use a direct power source to the 200mm fan, it needs more juice than a mobo connection can provide.

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Product Overview

The Antec Twelve Hundred is the evolution of the best-selling Nine Hundred, expanding on its award-winning design with even more cooling, capacity, and convenience. The Twelve Hundred is incredibly robust, with 12 drive bays, 7 expansion slots, and space for even the largest graphics cards. To keep the most demanding systems nice and cool, the Twelve Hundred boasts an unprecedented cooling system, with a top mounted 200mm blue LED fan, two rear blue LED 120mm fans, and three front blue LED 120mm fans to cool the HDD cages. Factor in convenient features like front mounted USB, eSATA, and HD audio ports, and the Twelve Hundred obliterates the competition.


Manufacturer Antec Inc.
SKU 207906548
UPC 761345081207
UPC 14 00761345081207
Product Guide Click Here for More Antec Products
Product Guide Learn more about Antec’s Commitment to the Environment
Interfaces/Ports 2 x USB 2.0 USB Top / Audio In Top / Audio Out Top / 1 x eSATA Top
Number of External 5.25" Bays 12
Number of Total Bays 12
Product Type System Cabinet
Product Name Twelve Hundred Chassis
Manufacturer Part Number TWELVEHUNDRED
Manufacturer Antec, Inc
Manufacturer Website Address
Number of Expansion Slots 7
Green Compliance Yes
Green Compliance Certificate/Authority RoHS
Dimensions 23" Height x 8.40" Width x 20.20" Depth
Form Factor Full-tower
Number of Power Supplies Support 1
Number of Fans Support 8
Number of Fans Install 6
Motherboard Support ATX
Tech Specs
12 Drive Bays
Perforated front bezel for maximum air intake
Washable air filters reduce dust build up in your system
Advanced Cooling System:
1 top special 200 x 30 mm blue LED exhaust fan with 3-speed switch control (LEDs can be switched off as well)
2 rear 120 x 25 mm special blue LED exhaust fans with 3-speed switch control
3 front 120 x 25 mm special blue LED intake fans with front speed control
1 side 120 x 25 mm fan to cool graphic cards (optional)
1 middle 120mm fan to cool CPU or graphic cards (optional)
Water cooling platform for reservoir or pump
7 expansion slots
Top mounted I/O ports for easy access
Power and reset button with blue LED
2 x USB 2.0
1 x eSATA
HD Audio In and Out
Convenient top accessory tray for a personal media player
Motherboard: Up to standard ATX
No Power Supply included: To optimize performance of your Twelve Hundred, your choice of power supply is crucial. Antec strongly recommends choosing from our NeoPower or TruePower series.
Dimensions: 22.9" (H) x 8.4" (W) x 20.2" (D)
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