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Item#: N82E16811129180

Antec Three Hundred Two Black Steel ATX Mid Tower Computer Case with Upgraded 2 x USB 3.0

  • Steel ATX Mid Tower
  • 2 x USB 3.0 / Audio Front Ports
  • 3 External 5.25" Drive Bays
  • 6 Internal 3.5" Drive Bays

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Antec Black Steel ATX Mid Tower Computer Case

The team that brought you the Three Hundred is back with an enclosure designed to handle today and tomorrow's high-performance systems. Introducing the Three Hundred Two, the next standard in affordable gaming cases. Our newest chassis is built for gamers from the inside-out, from its aggressive front bezel, to its advanced cooling system. The Three Hundred Two is the rightful heir to the Gaming Series legacy.




To ensure that heat won't be a problem, the Three Hundred Two offers a rear 120mm TwoCool™ fan and a top 140mm TwoCool™ fan with four optional fans. It also features a side 120mm fan mount to cool graphics cards and another 120mm fan mount behind the motherboard try to help dissipate heat buildup. For maximum flexibility, top water cooling grommets are included for a custom water loop option and an enlarged CPU cutout.


Less Maintenance and More Gaming

Comes with total of nine tool-less 5.25" & 3.5" drive bays with two dedicated SSD mounts, a large cable management compartment, and two front panel USB 3.0 ports with an internal connector makes installation a 1-2 step. The Three Hundred Two also takes advantage of the cable routing holes behind the motherboard tray, making cable management a breeze. It can support a maximum graphics card length of 12.5" (318mm) and a removable, washable PSU air filter and front intake filter to top it off.


Antec Antec Antec Antec


Model Three Hundred Two
UPC 0-761345-15320-1
Unit Dimensions (H x W x D) 20.2 x 9 x 18.5" (513 x 229 x 471mm)
Package Dimensions (H x W x D) 22.2 x 11.4 x 20.7" (565 x 290 x 525mm)
Maximum Video Card Size 12.5" (318mm) maximum video card size
Case Type Mid-Tower
Front Ports Two USB 3.0 with internal motherboard connector • Audio In/Out
Cooling SystemCase Type
  • One 120mm rear TwoCool™ fan
  • One 140mm top TwoCool™ fan
  • Two 120mm front intake fans (optional)
  • One 120mm side intake fan (optional)
  • One 120mm side exhaust fan behind motherboard (optional)
Drive Bays
  • Three 5.25" tool-less drive bays
  • Two 2.5" drive bays (dedicated)
  • Six 3.5" tool-less drive bays
Motherboard Support Standard ATX, microATX, Mini-ITX
CPU Cutout Enlarged CPU Cutout
Color(s) Black
  • Net Weight 15.3 lbs (6.9kg)
  • Gross Weight 18.7 lbs (8.5kg)
Expansion Slots 8 expansion slots

Learn more about the Antec Three Hundred Two

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the Antec Three Hundred Two

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  • Robert M.
  • 5/11/2016 10:08:43 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsReally nice, very quiet case

Pros: The usual Antec quality. Nice layout. Works well with Antec P/S. Tall enough to work well under desk.

Cons: Quite a lot of holes to let dust in.

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  • Matt H.
  • 3/28/2016 9:54:45 AM

4 out of 5 eggsvery Descent case

Pros: Very good on keeping dust out , could be due to the material and tightness of case but i notice when i have other cases full of dust this one has hardly none Build quality of the steel etc is very solid .

Cons: A little awkward on layout overall not enough to take a lot away from the case,

Other Thoughts: Yes i would recommend this case when you can get it for 40 dollars , its solid does the job , this and the NZXT source 210 are my 2 top choices in the budget line of cases Ive built over 40 pcs over the last 5 years and tested many cases so i do have experience with different brands and types so i can honestly conclude that this is a solid option at the right price .

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  • Parker R.
  • 3/19/2016 2:17:41 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWell-engineered case, function over form

Pros: Very clever engineering all around. Tool-free drive bays are great, the side panels are very easy to get on/off.

Very good cable management solutions. Good anchor points, the behind-the-board routing space has smart cutouts.
Plenty of space for everything.

Cons: It doesn't have any 2.5" SSD slots. It does have hard-mounts where you can screw them onto the case's sheet metal, but it's a bad solution. I just got some 2.5" metal adapters, (BYTECC brand), and they work fine.

It's visually a cheap case. The front meshes look inconsistent and cheap (5.25" bay and 3.5" bays have different mesh). The back-side panel bows out slightly if I route cables under it.

Stock fans have a 2-speed switch in the back of the case, very hard to reach. On high setting they're noisy. Plan on getting better fans if you don't always keep them on low speed.

Other Thoughts: I don't care about how my build looks. I just shove it under my desk anyway. This case is great value for someone that wants a mechanically superb case for simply building a functional PC.

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  • James S.
  • 2/11/2016 9:39:45 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsSo So

Pros: Nice finish, looks good.

Cons: The HDDs go sideways in this case, need right angle cables to insure that the case can be closed. Which, of course, I don't have. Can't shut the cases sides. Why the change? All other Antec cases always had front to rear placement. This is not progress. Necessitates buying extra cables and incurring further expense.

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

  • Kalan F.
  • 1/31/2016 8:01:45 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsCould be better

Pros: - Appears sturdy

- Sides come off/go on easily

- Different method of cooling psu, with a filter on the bottom of the case for the power supply to suck air through.

- Cable management holes and space behind motherboard tray.

- The tool-less drives for the 3.5" and 5.25" work.

Cons: - Seemed to be assembled by a high school dropout, every fan had to be removed and adjusted because the cable routing was terrible, one fan had the cable running through the blade section and would have never worked.

- The USB 3.0 connector is gigantic, and the cables for it at way too stiff, I had to zip tie the connector in to places to take the pressure off of the board.

- The SSD (2.5") mounting locations are a complete joke one is on the very bottom of the case and barely allows room for cables to connect to the drive. The other one has half of the screw holes covered by the mother board, and apparently wants you to mount the ssd behind the motherboard tray.

- They made a filtered case with 2 holes (one in each side) that have no fans exhausting, or filters filtering the air coming in, making the filtering pretty much pointless unless you block the open holes.

- Price, this is a $40 to $50 case.

Other Thoughts: I've purchased many Antec cases in the past and this one is by far the most disappointing.

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

  • Taylor M.
  • 1/26/2016 5:51:28 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSturdy, spacious, and very aesthetic for your money

Pros: It's pretty sturdy and spacious. It's also a very nice looking case as well. For the money, this case is definitely worth it, plus the fan control for the top and back is a nice feature too!

Cons: After installation, the side panel doors seem to vibrate/rattle when I put a cd in my new drive. They're tightened down good, but it's not bad enough to give it a 4.

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  • daniel s.
  • 12/23/2015 7:52:53 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsnice mid tower case

Pros: pretty roomy for a mid tower, a lot of spots for fans. doors come off and go on easy

Cons: the usb 3.0 plug for the front ports is a little big and wouldnt fit on my MB

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  • Sabas C.
  • 12/21/2015 10:24:06 AM

5 out of 5 eggsMy favourite mid size case!

Pros: Very roomy! 5 120mm + 1 140mm fan slots

lots of room for cable management

Durable, doesn't feel cheap

usb 3.0

easy to work in


Cons: Doesn't have a version with a side panel (personal preference)

Not alot of clearence above the motherboard for a 140mm rad.

could've used another 140mm fan slot above the mother board

Other Thoughts: For what it is and the price its a fairly decent case,
and its my personal case, would recommend to others

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  • terry r.
  • 12/17/2015 11:41:36 AM
  • Ownership: 1 month to 1 year

5 out of 5 eggsGREAT CASE

Pros: If you liked the 300 Antec, then you will LOVE the 302, it is much the same although without the bothersome front cages. It also has the USB 3.0 outputs in front along with the mic and speaker outputs.
Has filters on ALL input areas including the darn power supply, check the little drawer for the filter for PS. There is also one in front like the 300 had.
Still nice and heavy, about 15 pounds, no LAN case for carrying to parties all the time, tho rugged. The new plastic thingys for putting in drives work well.

Cons: Can't think of any except they could lower price since they must make a LOT of them.

Other Thoughts: Get this if you want a heavy nice little mid sized case with room for almost any install. Even fits a GTX 580 monster. Love Antec since 1997, every case I bought I still use.

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  • Wolf D.
  • 12/8/2015 3:35:22 PM
  • Ownership: 1 week to 1 month

4 out of 5 eggsGood value

Pros: Spacious with excellent options for cable routing. Toolless installation. The two supplied fans (120 and 140mm) provide more than adequate cooling, keeping the CPU and MB consistently below 30 degrees C even on the low-speed setting. And it is *silent* at the low fan setting and barely murmurs on high.

Cons: The motherboard tray flexes more than I like.

Other Thoughts: I bought this for my wife's build, based on my positive experience with Antec's Eleven Hundred V2. This case is a bit smaller (the Eleven Hundred is oversize for a mid-tower) and though I have no complaints with my case, this one has some features that make me wish I'd gotten it instead.

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