Skip to: | |

Newegg.com - 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.

Newegg.com - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Antec Three Hundred Black Steel ATX Mid Tower Computer Case

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • Steel ATX Mid Tower
  • USB 2.0 / Audio Front Ports
  • 3 External 5.25" Drive Bays
  • 6 Internal 3.5" Drive Bays

LOADING... LOADING...
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
 
 

Antec Three Hundred Black Steel ATX Mid Tower Computer Case

Antec combines size, quality, features and low price to deliver the ultimate gaming case. The smallest of Antec’s "Hundred" series designed for the do-it-yourself gamer, it is equipped to deal with the increased heat output of high-performance systems as well as providing a flexible design to best suit your needs. Its overall matte-black finish shows that you – and your system – mean business.

 
The front panel includes a pair of USB 2.0 inputs as well as jacks for a headphone and microphone. The front bezel is perforated for maximum air intake and it has a washable filter to reduce dust within the system. Inside, are a total of nine drive bays – six 3.5in. internal HDD’s and a trio of 5.25in. external drives. Seven expansion card slots let you load up on graphic and other options up to – and including – a full height ATX motherboard. A rear-mounted 120mm TriCool fan as well as a top-mounted 140mm TriCool fan – both with three-speed switch control – draw air through the case.

 
 
In addition, there's space for an additional pair of 120mm fans behind the front bezel to cool the HDD’s as well as the option to mount a third 120mm fan on the side of the case to cool the GPU. If you’d rather put your money into what goes inside the case rather than the case itself, the Antec Three Hundred is for you.
FEATURES
  • Versatile case with six hard-drive bays, three optical-drive bays, one internal bottom-mounted 2.5in. SSD drive bay, and seven expansion slots
  • Three-speed rear and top fans keep system cool
  • CPU cutout allows for easy installation of CPU coolers
  • Washable air filter reduces dust buildup
  • Perforated front bezel for maximum air intake
  • Top-mounted audio in/out and USB ports for easy access
  • Backed by a three-year limited warranty
Filtered front panel takes in air efficiently and prevents dust buildup

Filtered front panel takes in air efficiently and prevents dust buildup

Advanced cooling system utilizes two fans to keep your system nice and cool

Advanced cooling system utilizes two fans to keep your system nice and cool

Front mounted USB and HD audio ports for maximum convenience

Front-mounted USB and HD audio ports for maximum convenience

 

 


Learn more about the Antec Three Hundred

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Verified Owner
5/ 5
Amazing case

Pros: I have had this case 7 years now. Has never failed on me. The front panel is kinda jacked up due to plugging things in and my knee hitting the wires(which is my own fault). Plenty of space to upgrade. Power/reset works great. Best part the stock fans it comes with, still working to this day! Although, 1 is finally dying(only works on high), but they are not loud at all, IMO. Great air filter for the intake in front, which is removable and able to be clean easily. Swinging door on front makes ease for fan installation/maint. or changing hard drives. Wire management is good. Very smooth surfaces. Steel case makes it near impossible to cause static while working on it inside(your always grounding yourself touching it).

Cons: None that I have ran into.

Overall Review: I've only been using 2 fans these last 7 years. Using top 140mm as I take and back 120mm as exhaust. With heat sink and 2 fans on GPU it always ran cool and never had a heat issue. I'm actually filling all the fan spots with LED fans to give this case a "newer" look. And boy does it look amazing. 4 120mm blue and 1 140mm red. Perfect!

3 smokers in house, so I clean it every 3 months with an air compressor. Dust likes to hide is wire nooks on sides.

Wire management was very hectic at first. But once you learn how to use the nooks on the side, it becomes very easy.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
4/ 5
Great case for a simple PC build

Pros: Small, sturdy, clean design and setup, plenty of room for some larger high-end graphics boards.

Cons: No real cable management is available in this case, so be prepared to get creative.

Overall Review: I have a gaming mobo with an old but reliable Radeon 6870 in this case. Everything has been running smoothly since 2011.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Best Case. (Period)

Pros: I've owned probably a dozen or so cases and worked on hundreds in my life and this is the best. It's modular, everything fits like it should, no sharp edges (you know what I'm talking about), it's not crazy large, has great air cooling, everything about it is easy and just works. I'd recommend to anyone

Cons: It's not crazy large. Lots of the new motherboards, video cards, power supplies, seems like everything is getting bigger and bigger. Except the solid state drives, they're shrinking. This case is not big enough to handle all the monster equipment but it does just find for my personal rig.

Overall Review: It's just about the perfect case. I didn't know unicorns existed until I found this one.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Excellent product

Pros: Well built. Fits perfectly the motherboard and the power supply. Easy to open and assemble the peripherals.

Cons: None.

Overall Review: None

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Fantastic Case

Pros: Spacious case, with numerous mounts for additional fans. Dust filters on the front of the case catch many of the bigger particles.

Cons: Price. There are many cheaper cases out there.

Overall Review: This is my go to case. I've built dozens of computers with this case. I've yet to find a case I like better.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
4/ 5
Good case

Pros: Lots of room, easy to put in all the hard drives, etc. Very good customer service: easy to contact, easy to work with.

Cons: The front of the case is poorly made, which is why I took off an egg. The front USB ports have failed twice and had to be replaced under warranty. They also don't work for every device. For example, my external hard drive enclosure doesn't work with them, which is inconvenient. I have to get under the desk and plug it into the back.

Overall Review: I would consider another Antec case, but more research would have to be done to be sure that the front ports are well made. Perhaps that is why Antec discontinued this version of this model.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
My favorite case

Pros: Fantastic air flow means quiet computing if you select quiet components. Easy to build, nice and roomy with good old-fashioned screw mounted drives.

Cons: Mounting 3.5" flash card readers requires and add-on kit. Mounting 2.5" drives required additional hardware (except for a single bottom mounted drive in newer cases). Sheet metal isn't as thick as the premium cases.

Overall Review: I build PCs for lots of friends and relatives. This has become my standard case. I've built up about a half a dozen of these without any issues. I prefer this case over the newer Three Hundred Two (which I've used a couple of times). My desktop PC is in a more expensive Sonata Solo and I'd prefer one of these.

2 out of 2 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Great case that's easy to work in

Pros: Finished edges, user-friendly design & control locations.

Cons: None.

Overall Review: This case has been a pleasure to own and use. It houses my always-on components, and is part of a build that is 4.5-5 years old now. The case is finished inside and has not cut me while I've had my hands inside. The front intake (with fan option) allows for a lot of airflow over heat-sensitive components. My next case will be, if not a sound-dampened Lian Li or Silverstone, another Antec.

Did you find this review helpful?
ICON Loading...
Selected Items
Selected Items
Are you an E-Blast Insider?
 
Subscribe Newegg e-Blast

This item is eligible for Newegg Premier benefits. Are you a Newegg Premier Member? If not, sign up today and get:

  • Free 3-day-or-less shipping on eligible items, discounts on 2- or 1-day delivery
  • Free shipping on returns using labels available on our website
  • No re-stocking fees
Sign-in

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.

Your Personal Data

Newegg’s website and online services use cookies and similar technology for a number of reasons: Some technologies allow the site to function. These functional cookies are required to use the site and complete purchases. Another set of technologies improve the browsing experience and personalize it. Here are all the details about Newegg’s Cookie and Privacy Policies. Please select and accept your settings before you continue. Thank you.

Your Personal Data

Newegg’s website and online services use cookies and similar technology for a number of reasons: Some technologies allow the site to function. These functional cookies are required to use the site and complete purchases. Another set of technologies improve the browsing experience and personalize it. Here are all the details about Newegg’s Cookie and Privacy Policies. Please select and accept your settings before you continue. Thank you.

Your Personal Data

To use this third-party content we need your approval to share your data with them. Here are all the details about Newegg’s Cookie and Privacy Policies. Please accept if you wish to continue with third-party features. Thank you.