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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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  • Donald M.
  • 6/22/2015 8:17:57 PM
  • Tech Level: Low
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsTower Review

Pros: Based on the ad, box and first look this appeared to be an excellent choice!

Cons: After the package sat on a table for a week I unpackaged the tower and made the fatal discovery; the back of the case was dented right where all the peripheral cards were to be installed. Bummer!!!

Other Thoughts: Outside of box showed no sign of damage so the cause of damage had to take place at the manufacturer and got shipped either by mistake or accident. I hate to think it was done deliberately.

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

  • Douglas B.
  • 6/4/2015 1:31:39 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNIce case

Pros: This is a nice upgrade from my previous Antec 1030. Through the years the 1030 served me well but with the upgrades over the years and the higher thermal values that came with those it was time to upgrade.
I really like the the cable management and the level of unrestricted airflow has helped the temp of my current processor running temp drop by 15°C , 55° C to 40°C, using standard fans. I was considering a water cooler before purchasing this case.

Cons: None yet

Other Thoughts: I hope this case lasts as long as my retired 1030.

Did you find this review helpful? Yes No

  • Steven S.
  • 5/18/2015 9:10:09 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSilent and Easy

Pros: With the larger back panel area (almost 1") it was easy to route cables in behind the mobo and allow easy air flow. Love the dust screens. Very quit compared to may last build.

Cons: Could have used a 2nd fan on the back (or area to put water-cool rad) so I could have kept the top enclosed to make it even quieter

Did you find this review helpful? Yes No

  • John A.
  • 5/11/2015 10:16:08 AM
  • Tech Level: Average
  • Ownership: less than 1 day

3 out of 5 eggsVW case for a Porsche Engine

Pros: It's such a pretty case.Lightweight and sturdy. Love the brushed aluminum, front, the rubber grommets bordering the excellent cable management. The Air filters are sufficient, sturdy, and easy to access, and there's plenty of ventilation even when the front door is closed. The side access HDD cage allows for an easy build and easy wire management. I like the the rubber grommets for liquid cooling hoses, and the radiator mount on the top is very sturdy- good features, particularly if you're looking for a Volkswagon Case with a Porsche engine

Cons: I just built a PC using a the Define R4 that I got for $5 more than this (After rebates). Compared to that case, this one felt inadequate. The p100 front door had some give to its structure, the side panels wont stay on unless the thumbscrews are inserted, the foam muffler was lightweight and peeling off the case, and the vibration dampeners were not very robust. The major flaw that was my deal breaker- and knocked off the 2nd egg was that the built-in Fans are 3 pin, and controlled with a 2-way switch hanging from a wire incise the case. The exhaust controller would fall into the video card; the intake fan controller is accessible by removing the back panel. PWM fans are not that expensive -I just bought one for $5- and it's an easy way to add value to a case. Most MOBO's can control them, and if you're buying a mobo that doesn't have the capability, and you don't want speedfan, you shouldn't spend your budget on a case this expensive.

Other Thoughts: This is a case that would be fantastic for a liquid cooled CPU or GPU, when intake/exhaust aren't so closely managed. If you're spending the kind of money needed to get the components that need liquid cooling, and the coolers for them, this case is a good way to cut cost. If you have a 4 yr old middle of the road gaming PC like mine (z77/3660K/660ti) Those features are unnecessary. I just need a good looking case because it's in my livingroom, a quiet case so that we don't have to listen to it when we're watching a movie and three fans that can be controlled by my MOBO.

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

  • Anonymous
  • 3/24/2015 12:32:03 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGreat overall

Pros: Lots of open space, extremely easy cabling, solid frame.

Cons: Outside is a little substandard. The front panel/door is poor quality. I guess something had to be cut to hit this great price point.

The feet are not big enough to be able to sit it on carpet and get enough airflow for the PSU. Place a flat piece of plastic or something similar underneath it if it will be on carpet or your PSU might overheat.

I know it is a midsize case but an extra half inch in height would be nice. The space between the modo and PSU is nearly zero. It is not a problem for me since I don't need the suplimental PCI-E power, but on the EVGA z97 FTW board, that connector is at the bottom of the mobo and faces downward. If you are planning to run SLI, make sure the mobo connectors aren't like my mobo or you will be returning the mobo or case.

The real manual is missing and only available online although all the cabling is pretty well marked and self-explanitory.

Other Thoughts: This is by far the easiest case to setup I have ever had. Lots of space to screw down the mobo and the cabling is so easy.

The cons, for me, aren't enough to be too critical of the case but there are plenty of use cases where this case will not work.

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

  • Jacob W.
  • 3/18/2015 10:49:41 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Case, Very Simple

Pros: Antec design and wiring is easy to make look pretty. Lots of room for drives and solid state friendly (no adapters needed). Case is very similar to my P280 in set up, but is much smaller.
Used this case for a build for a business here in town and I wasn't disappointed.

Cons: Don't like that it is fairly mandatory to mount the PSU with fan facing down. The screen on the bottom for filtering out dust for PSU is kinda cheap and slides around a lot.
I don't like the way the optical drive secure to chassis - think this could be done better.

Other Thoughts: Great case and would highly recommend it - especially if you are looking for a more compact case with all the options you get with high end gaming cases. No clear sides to show off the guts, if this is for a business workstation build that is nice.

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  • Mike W.
  • 2/15/2015 4:08:32 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Case

Pros: This is a very good case for the money. I also got a $20 rebate. Doesn't get much better than this. This sound proofing is very effective.

Cons: None

Did you find this review helpful? Yes No

  • Steven R.
  • 2/3/2015 8:01:38 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSweet Case

Pros: Plenty of drive bays and great insulating sound features. Holds 2.5"/3.5" HDs on the same mounts. Very well designed for wire management. Plenty of extra fan space if needed. Video cards won't interfere with hard drives space.

Cons: None that I saw.

Other Thoughts: I've always like using Antec cases and have 4 systems using older model cases. Wouldn't mind updating the image processing and telescope cases with this model. Those were the older P300 cases.

Did you find this review helpful? Yes No

  • Claire 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.

3 out of 3 people found this review helpful. Did you? Yes No

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Item#: N82E16811129199
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