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Item#: N82E16811129199

Antec P100 Black ATX Mid Tower Computer Case

  • ATX Mid Tower
  • 2 x USB 3.0 with internal motherboard connector, 2 x USB 2.0, Audio In/Out Front Ports
  • 2 External 5.25" Drive Bays
  • 7 x 3.5" (2.5" ) Internal 3.5" Drive Bays
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Antec P100 Black Computer Case

The P100 is an ATX case that epitomizes cool, quiet, and sophistication. It features Antec's award winning Performance One series design and Quiet Computing™ technologies that minimize system noise. In addition to seven expansion slots, the P100 also supports two tool-less 5.25" drives and seven tool-less 3.5"/2.5" drives. With a great price to feature ratio the P100 is the only economical case that delivers first class silence performance. The front panel swings open 270 degrees to reveal front filters and drive bays while keeping the design sleek and professional. As with all Antec chassis' the P100 is engineered with Quiet Computing™ Technology, and stands in a class of its own.


Nine Drive Bays 2 x 5.25" Tool-less drive bays
7 x 3.5" / 2.5" drive trays
Motherboards Strandard ATX, Micro-ATX, Mini-ITX
Expansion Slots Seven (7)
Maximum Graphics Card Size 12.5" (317.5mm)
Maximum CPU Cooler Height 6.7" (170mm)
Cooling System 1 x 120mm Top Exhaust Fan
1 x 120mm Rear Exhaust Fan
2 x 120 / 140mm Top Exhaust Fan (Optional)
1 x 120 / 140mm Front Intake Fan (Optional)
Water Cooling Support Rear Water Cooling Grommets
Cable Management Enlarged CPU Cutout
Front I/O Ports 2 x USB 3.0 with Internal Motherboard Connector
2 x USB 2.0
Audio In/Out
Unit Dimensions (H x W x D) 19 x 8.7 x 20.6"
(484 x 220 x 523mm)

What's in the Box


Learn more about the Antec P100

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the Antec P100

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  • Casey S.
  • 1/16/2015 9:10:54 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

3 out of 5 eggsFront Ports Borken

Pros: Very cheap. Didn't get it from newegg (Fry's Electronics) but with rebate it was only $25. Very easy to install all the parts and it has plenty of room. 7 freaking drive bays! very sleek design and great filters

Cons: The front audio and mic ports both fell off the enclosure into the space above the drive bays. I can't snap them back into place and are now unusable unless I pull them out the side of the case. The right-most usb 2.0 doesn't transfer data, only power over the usb. the rest still work

Other Thoughts: Great case for the price but it seemed a little poorly made. Gonna stick with it for a long time.

Did you find this review helpful? Yes No

  • Jason H.
  • 1/9/2015 11:28:45 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsAntec P100 rocks!

Pros: * Quiet
* Great cooling potential (if you add fans)
* Solid build quality
* Accomodates large GPU's and cpu coolers
* Accomodates water cooling
* Lots of hard drive space
* Elegant looks
* Excellent wire management
* Decent fan filters

Cons: * Only comes with 2 fans
* Stock cooling mediocre
* Front door a bit flimsy
* MSRP is a bit high compared to competition

Other Thoughts: I decided on the P100 to replace my son's old Antec 300. We wanted something that would accommodate his large new Asus DCII R9 290 graphics card, provide ample cooling while staying pretty quiet. The Antec P100 fits the bill and then some.

First, the dimensions are great for a mid size case. Plenty of room in the inside for large GPU's and to work around the motherboard and not feel squeezed. There is room for a 240mm water cooler up top, I test fit my CM Glacer 240L and it fit perfectly. The case can also accommodate tall cpu coolers and easily had tons of room for my Hyper 212. There is excellent routing for wires behind the motherboard tray. The included fans are quiet at both speeds, my only complaint is that there are only two of them and stock cooling with them is mediocre at best. Thankfully there is plenty of room for more and I added 2x140mm corsairs up front, moved the fans that came with the case to the 2 spots on top and added a Corsair 120mm to the back. With these in place the case was still dead silent at idle and offered ample cooling keeping the power hungry overclocked R9 290 to only 65C when 100% loaded playing Far Cry 4 on Ultra settings.

There are tons of hard drive trays and they have nice silicone bushings to keep rattling away. The slot in easily and snap in place with a nice and solid "clack". Also, the front fan filters are of nice quality and easily cleaned. The front door is mostly plastic and feels a little flimsy, so some care may be needed to make sure it is not damaged. The side doors have sound deadening material attached, which really does help. The top has deadening as well, but I removed the panels so I could replace them with top exhaust fans.

The case offers 4 front USB ports, 2 of which are USB 3.0, but if you have a older motherboard and do not have one of the new USB 3.0 headers, the cord has a built in adapter to plug into a normal 2.0 header! My only real wiring complaint is that the individual wires for the power button, LED, reset, etc should be wrapped together in a single cord. They all plug in near the same place on every motherboard known to man, why are they loose like that?

In the end, I am very pleased with this case. I got it for $59 after rebate and for that price it is a steal. At the normal $89 MSRP, there are some solid alternatives out there, but the Antec P100 absolutely deserves at least a look.

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

  • Jerry K.
  • 11/26/2014 1:07:41 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAntec P100 Case for new system

Pros: The manufacturing quality of the case is exceptional, except for the plastic from cover. The metal construction is great with no sharp edges (a sign of cheaper cases IMHO). The fit is perfect and the interior very roomy even for a large CPU cooler.

Cons: Front plastic door is my only disappointment though not enough to deduct an Egg.

Other Thoughts: Motherboard, disk drives, optical drives, graphics card CPU and cooler all fit perfectly.

Newegg delivery rocks !!!

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  • Francisco G.
  • 9/20/2014 8:05:19 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month

5 out of 5 eggsGreat value

Pros: Lots of space
Great cable management
Easy to clean

Cons: The walls can be easily bent. Shipper bent one of the rear panels. Was able to bend it back into shape though.

Other Thoughts: Great case. Will definitely buy another one if needed.

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  • Steven A.
  • 9/18/2014 11:02:22 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood looking case

Pros: There are lots of things I like about the case. The front face is very nice looking with the dark sleek brushed aluminum. Plenty of space on the inside for hard-drives and wire routing, etc. It is also acceptably quiet.

Cons: When the case arrived in the main I noticed something rattling around inside the case. I opened it up to find the fan mounted in the rear had fallen apart. The bladed part was completely detached from the rest of the fan housing. It went back on fairly easily and to my surprise was very quiet. The front fan however, makes a very quiet ticking sound. Because of this I am running the front fan on the low speed. The rear fan can run at full speed and is still very quiet, but the front fan on high becomes quite noisy. I may replace it with a different fan.

Another thing I noticed was the cheap feeling quality of the case. The sheet metal feels very thin and the removable fan filters fall off very easily.

Because of these two reasons, I am taking one egg off, but overall I feel this is a very good looking case and still worth the price.

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

  • Larry B.
  • 6/30/2014 10:08:24 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsThe Case

Pros: Case is great. Love the ability to easily route cable. Cable management dream. Everything was a cinch to set up.

Cons: Filter on the bottom is a bit flimsy, but what more can u ask for!

Other Thoughts: Definitely recommend a buy if your looking at this case.

Did you find this review helpful? Yes No

  • Richard J.
  • 6/26/2014 8:42:34 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsGreat Case

Pros: Great size. Able to get a z87x motherboard inside with plenty of room for cable management (lots of holes to route to the side of the case) runs quiet. My fans were preinstalled but they were put in the front and the back and none on top. Will probably add one but haven't needed to. Very pretty and nice looking. This was my first build.

Cons: None noted yet.

Other Thoughts: I'm thinking I'd like to install a card reader slot and 2 DVD Rom readers but you could not do that with this case but that is not a con. I knew that when I bought it and hadn't thought my build through all the way

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  • Mychel M.
  • 3/10/2014 6:08:38 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month

5 out of 5 eggsGreat case if you want the clean look.

Pros: If you prefer the clean look. This is the perfect case for you. The front door is secured via a magnet and has a filter as per norm. as well as a small vent on the bottom of the door to allow plenty of air. The case has lots of room on the side panel for cable management and lots of room for after market cooling. I personally have a stock Asus mobo that came from the Asus branded PC I bought at a local retailer. I wanted more options and opted to get this case. Everything fit well and now I am running i7 3770, with Corsair H50 water cooling. GTX 760 ti and all was simple to install with the great hole placements.

Cons: None that I can think of.

Other Thoughts: Great case.

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

  • Scott P.
  • 2/14/2014 11:18:28 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat new case from Antec

Pros: This a great case overall and is a smaller version of the proven Antec P280. My build went smoothly and the case is well designed. The external 5.25 drive bays are tool less and the internal drive slots include rubber grommets for hard drive anti vibration. There are plenty of available fan slots for gaming rigs and the case is very quiet with the included fans set to high. Each included fan comes with a high/low setting. I purchased one additional fan that easily installed to the front of the case for intake (Antec TwoCool 75246 120mm 2 Speed Case Fan). This fan is identical to the two fans included with the case. There is ample room, under the mobo, on the right side of the case for cable management. My power supply came with numerous cables and I was able to fit all of them under the motherboard tray and still get the right side of the case cover on without issue. The package also includes enough additional screws to complete your build in addition to screws for the additional front mounted fan. There is plenty of room for the latest oversized graphics cards. Comes with USB 2.0 and 3.0 support. More details can be found at

Cons: This case has a bottom mounted power supply so if your rig sits on the carpet you risk suffocating the power supply intake fan. From what I have noticed during evaluating new cases, most manufacturers are now mounting the power supplies on the bottom of the case. To avoid the issue, I mounted my power supply upside down and with the additional intake fan, in front, I'm not concerned about heat being drawn into the power supply from within the case.

My P100 came with a minor bulge in the back of the case near the bottom. The shipping box was in good shape so I think this occurred when the metal was riveted together. I was able to fix this with a slight tap of a rubber mallet. Since I was able to fix the issue easily, I didn't take an egg off the rating or feel the need to return the case, but Antec's QA could have caught the imperfection.

Other Thoughts: My gear that was installed into the new case:

ASUS P6T Deluxe V2 - Intel Core i7-960 (Stock cooler) -
Corsair Dominator 6GB DDR3 1600 -
ASUS HD7950 3GB 384-bit GDDR5 -
Western Digital Caviar Black 1TB 7200 RPM SATA3.0 -
LG 10x Internal Blu-ray Disc DVD±RW/CD-RW Drive
Corsair CMPSU-850TX 850W Power Supply -

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

  • ZHI Y.
  • 1/8/2014 12:35:51 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsgood case

Pros: lots of space, many 3.5/ssd slots, 4 front usb port (2x 3.0, 2x 2.0), good ventilation, keeps my cpu cool and quiet.
also a very decent looking case.

Cons: Antec quality, not the most durable front door, little flimsy but i keep it closed most of the time.
non-removable driver bay.

Other Thoughts: Overall, a very good looking case.

Did you find this review helpful? Yes No

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Item#: N82E16811129199
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