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Antec > 
Item#: N82E16811129020

Antec Atlas 550 Black Server Case w/ 550W Power Supply 4 (with one 5.25" to 3.5" adapter) External 5.25" Drive Bays

  • w/ 550W Power Supply
  • 4 (with one 5.25" to 3.5" adapter) External 5.25" Drive Bays
  • 1 120mm Fans
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The Atlas 550 from Antec puts the advanced features of a server case into a smaller package for a home server or power workstation. The 8-drive bays are split between exposed 5.25" (1 has a 3.5" adapter) and internal 3.5" bays with vibration damping grommets. The side panel has thumb screws for easy access, and the front panel comes off to access the drive bays and two 92mm fan mounts.

In addition to the front mounts, the front panel is vented for maximum airflow across all components. For additional cooling, the side panel has a vent with holes to install an 80mm fan over the video card. The back panel has a three-speed 120mm fan to pull air through the system and over the CPU, keeping everything cool.

The TruePower Trio 550W PSU is Certified SLI-ready by NVIDIA with dual PCIe 6-pin connectors. There are also 4 SATA connectors for today’s high speed drives. An Antec case with an Antec PSU is a great foundation for a powerful system.

  • newegg Excellent Expandability with 8 Drive Bays Featuring four 5.25" external drive bays (with one 5.25"-to-3.5" adapter), and four 3.5" internal drive bays, the Antec Atlas 550 provides excellent expandability.
  • newegg Efficient Ventilation The Antec Atlas 550 features one 120mm rear fan, two front 92mm fan mounts and side panel vent with an 80mm fan mount for efficient ventilation and effective system cooling.
  • newegg Built-in 550W PSU The Antec Atlas 550 is equipped with a TruePower Trio 550W power supply unit to feed energy-consumptive monster systems, making every computer component run robustly.
  • newegg Convenient Front I/O Panel The Antec Atlas 550 features a convenient front I/O panel for easy access to one IEEE 1394, two USB 2.0 and two audio ports.

Learn more about the Antec Atlas 550


Atlas 550


Motherboard Compatibility
Fits micro and standard ATX
Power Supply
w/ 550W Power Supply


External 5.25" Drive Bays
4 (with one 5.25" to 3.5" adapter)
Internal 3.5" Drive Bays
4 removable HDD trays
(with rubber grommets to isolate drive vibrations)
Expansion Slots

Front Ports

Front Ports
USB / Audio / IEEE 1394

Cooling System

120mm Fans

Physical Spec

18.5" x 8.1" x 17.0"


Removable side panel with easy-access thumb screws
Removable front bezel for easy access to drive bays
Blue LEDs on front for Power On and HD indicators


Package Contents
Atlas 550
User Manual
Power Cord

Quick Info

Customer Reviews of the Antec Atlas 550

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  • Anonymous
  • 9/27/2012 8:30:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

4 out of 5 eggsBuilt like a Soviet Tank

Pros: Very sturdy construction with heavy gauge steel definitely made for industrial use.

Cons: Some odd design elements like the cross bar that supports the power supply. It was in the way of dropping the motherboard straight down, had to angle it in. Too little clearance at the bottom of the case, makes it difficult to attach wires to connectors at the low end of the motherboard. Power switch is two piece, face part is attached to front bezel that pivots at the right. Didn't like the rail system for attaching drives, it only had five rail brackets.

Other Thoughts: I bought it as a Newegg open box sale for $99, it works fine with all parts included.

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  • Donald J.
  • 5/24/2012 9:54:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsQuality Case

Pros: Good quality case, smaller than expected but I actually like that. Very quite and I get better temperatures with this case with fewer fans.

Cons: The price seemed a little high but consider the quality and the extra power supply, I think it was worth it. Kinda seemed odd to mount 3.5 drives from the bottom and not the side though.

Other Thoughts: I am not sure how good of a professional server case this would be as it seems too small. However, it makes a great simple desktop case and/or personal data server which is what I am using it for.

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  • Paul P.
  • 4/30/2010 8:42:47 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsVery Nice Case!

Pros: With standard fans, _extremely_ quiet. Nice matte black finish doesn't show fingerprints as much as a shiny finish. Well-finished inside (didn't cut my my fingers on any razor-sharp sheet-metal edges this time!). Just about every power cable option you could possibly need. Nicely wrapped and accessible cabling. I put an ASUS motheboard, a Xeon, an optical drive and one hard drive in here and nothing else. Airflow and heat is just fine as it is. If you're not overclocking or setting and just an optical and single hard drive, you probably won't even need any extra fans; I wound up taking mine out.

Cons: Personally I'd like it if some of the cables with legacy power connectors weren't there taking up space. At this point I only need SATA power connectors, and one cable bundle for optionally attaching fan power connectors. The separate fan-only power and control wires are a little flimsy and messy, as are the wires danging from the rear fan. The rear fan could be pre-wired to the power supply and a simple jack provided with a wire to attach fan control from the motherboard. This is a very minor complaint though. Some extra internal points designed to attach cable ties would be nice. Including some zip ties to bundle cables would be nice too.

Other Thoughts: Would definitely buy this case again.

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  • Anonymous
  • 3/31/2010 3:18:55 PM
  • Tech Level: High
  • Ownership: less than 1 day

3 out of 5 eggsDecent Case, I suppose

Pros: Solid build, good ventilation, PSU has both 4pin 12V and 8pin 12V plugs (Some boards need both.) HDD mounts have rubber vibration isolating mounts, and have holes for 2.5" drives, though you only get enough of the special screws to mount a single 2.5".

Cons: Got this to fit an ATX dual Xeon board from SuperMicro, and it looked like this had the mounting holes for the CPU heatsinks. And it has the holes, and they're in the right place for the board, but the 5.25" and 3.5" drive cages are just a tiny bit too close, so you can't even get standoffs into the holes - the heatsinks definitely don't fit. I'll see what I can do with a Dremel to correct the fit issues.

Case is just a bit smaller than I'm used to, and excess cabling from the PSU becomes a huge pain.

Other Thoughts: Front panel connectors are extremely long, seems like they wasted a rather large amount of space with the 3.5" bays.

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

  • Alex C.
  • 7/27/2009 9:30:08 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks Well

Pros: Installed in as a small business server box with 24/7 ontime. Has performed well. Has enough room for four hard drives. I might have gone for the titan if I thought I would need more. Has enough room to adequately cool the drives and the motherboard. Extra room to install some fans for the front. They do not come with it. The power supply has behaved well. The front faceplate and the side plate even come off without too much fuss. Well designed.

Cons: The top hard drive slot might have been a little too close to my motherboard. It was difficult to get the SATA connectors right. Of course, that also has to do with the motherboard, and is simply an error on my part.

Other Thoughts: Looks really nice and simple. Its not fancy and gamey and lit up with different colors. It also looks tons better than a Dell or HP or Compaq box.

4 out of 4 people found this review helpful. Did you? Yes No

  • Anonymous
  • 6/29/2009 11:55:55 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: As always a great product from Antec.

Cons: Front door should open farther to the right so it isn't so awkward getting HD caddy's out.

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  • Anonymous
  • 4/8/2009 7:05:45 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNoah

Pros: Great layout.
Included PSU plenty beefy for server.
Lots of HDD bays.
Two optional 92mm fans on the front blow right on the main HDD bay. Great cooling for the drives.
Optional 80mm fan on the case door to feed CPU fan w/ cool air.

Cons: Noisy when utilizing all fans but this is a "server" case, which is what I'm using it for so it can be as loud as it wants upstairs in my networking closet.
Two front intake fans dont come with filters, pretty necessary if you want a clean system.

Other Thoughts: This is my new standard case for all the servers I build. Couldn't ask for a better setup, plenty of cooling, plenty of room.

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

  • Matthew W.
  • 2/8/2009 7:58:26 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsSturdy Case, Just tight.

Pros: It's a great case. Quality built and I could probably jack the front end of my truck on two of these. Great PSU and plenty of HDD space.

Cons: This case is TIGHT. It probably wouldn't have been so bad if the Asus mobo I used didn't have such a weird processor placement (the processor sits to the extreme right which places it up against the optical drives). It won't be so bad once all the cables are fixed.

Other Thoughts: I wish I would've bought the step up from this one (which I own four of). I had limited space and thought it would suit my needs. It did, just a little more of a pain to build.

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

  • Samuel B.
  • 1/20/2009 2:45:38 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsToo heavy, too noisy

Pros: Solid tank.

Cons: Too heavy. The angle of the front USB ports is annoying.

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

  • Jack R.
  • 1/18/2009 10:55:17 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent SOHO Server Case

Pros: Good size (not too big, but big enough). Solid feel (not flimsy anwhere). Cooling provisions are Outstanding! Very, very quiet in my configuration. Included PS is excellent and provides connectors for (almost) everything. 3.5" drive bays are loaded from the front, making power and data connections on the rear very easy. Good expandability, even includes a possible external 3.5 bay for a floppy, tape drive, or media card reader. 3 USB connectors on the front panel is useful.

Cons: PS only has 4 SATA power connectors (on 2 pigtails), requiring an adapter for an SATA optical drive if you have more than 2 HDDs (It might be possible to install the optical drive in the lowest 5.25" slot, and use the same SATA pigtail to power an HDD in the top 3.5" slot, but I couldn't try that). Accessing the drive bays still requires removing the side panel. No front panel Firewire or eSATA connections.

Other Thoughts: I got this case partially just to experiment with a "real" server case (the rest of my SOHO systems are built on Antec Sonata cases). I set up a RAID 1+0 file / DB server with 4 HDDs. I was flabergasted that the PS had no SATA power connectors left over for the optical drive. Adapters are easy to come by - and I should have been paying more attention to the spec when I knew I was going to install a full load of HDDs, but it set me back a day. As a server case, this doesn't come with the "locks" of most workstation cases; instead it has provision for a full blown padlock on the back (I'm not sure why). On the other hand, there is no provision to lock the power switch (FWIW). The cooling provisions were good on spec, and turn out to be awsome in practice. You can put up to 4 fans in this case. I didn't feel any need for extra fans, and my system runs so quiet it is typically below background ambient. All in all, an excellent SOHO server or heavy duty workstation case.

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

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Item#: N82E16811129020
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