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Item#:N82E16811208021
XION

XION Onyx XON-303 Black/Blue Steel ATX Mid Tower Computer Case - Retail

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  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • Restocking Fee: Yes
OverviewCustomer ReviewSpecificationsProduct Tour
Xion made the Onyx XON-303 case with all the options included, all the requirements exceeded, and the price a knockout. They started with the basic option that most cases skimp on, the fans. The designers went big for maximum air flow with a 120mm intake fan up front, and another 120mm exhaust fan in the rear. Not content with that though, a 140mm blue LED fan was mounted on the side panel window to breathe relief directly onto the motherboard.

Up front wasn't forgotten either, with the spacious four 5.25" and two 3.5" external drive bays, all protected with style behind their door. Inside is just as impressive with a massive five bays for the internal hard drives. After that the only thing missing is the most important, durability. And there will be no doubt that it wasn’t forgotten when you feel the stability of its steel construction.

Review Summary (read more reviews)

5
newegg
66%
4
newegg
26%
3
newegg
6%
2
newegg
1%
1
newegg
1%
Product Rating:
Total Reviews: 225

Great Cool/Quiet Case

white Reviewed By: Ashwood on 4/7/2007
Rating + 4
Tech Level Tech Level: average - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Rebate was nice. Cooling in this case is very efficient and quiet. Plenty of room for all your components while still maintaining good airflow.
Cons: 2 differnt connections for the hard power switches (one for inside button one for outside button); which made it so I could only make one button active. I'm probably going to merge the cables soon as its starting to get on my nerves, on the plus side theres plenty of wire slack to do this.
Other Thoughts: I chose this case for my first desktop build, it has plenty of room making for easy install. At first I was afraid the three large fans would be noisy but I was proven very wrong! After the extra PSU and CPU fans it still runs at a whisper. The way they set up the power connectors was very strange/inefficient (see cons). Overall very nice case, I reccomend it highly if your 1)not bothered by the power thing or 2) know how to merge wires.
36 out of 37 people found this review helpful. Did you? Yes No

white Reviewed By: radigan15 on 3/4/2007
Rating + 5
Tech Level Tech Level: high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: Solid, Lotsa drive bays, Quiet, CPU and MB run 6 degrees Celsius cooler. Door reduces sound of CD-ROM spinups.
Cons: Metal plate where the I/O panel that came with your motherboard goes cut my thumb removing that while trying not to bend the other metal around it. 2 power button connections not a real biggie I use the big one on the outside for mine.
Other Thoughts: Perfect setup,I was looking around for better cooling for my newly built machine and was looking at cases and this was the only one with big well placed fans. Definitely a good buy especially with the rebate.
26 out of 27 people found this review helpful. Did you? Yes No

Quick Specs (view all30)

ModelXON-303
TypeATX Mid Tower
Color2-Tone
Case MaterialSteel
With Power SupplyNo

Review Summary (read all 225 Reviews)

5
newegg
66%
4
newegg
26%
3
newegg
6%
2
newegg
1%
1
newegg
1%
Product Rating:
Total Reviews: 225

Pretty but Inconvenient

white Reviewed By: on 7/14/2009
Rating + 4
Tech Level Tech Level: average - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: nice looking case, the visual design and lighting is very pleasing
Alot of room on the inside
Cons: Lack of additional fan addition spots
the power on, reset, DVD can only be accessed by opening the front panel, kind of inconvenient
Other Thoughts: Meow, Kitties need lovez <3
Did you find this review helpful? Yes No

white Reviewed By: on 5/17/2009
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Very impressive case. The door on the front is very sturdy and the LED fan on the side is just the right brightness. The front intake fan is well hidden and directs air right onto my radeon 4870, which despite being somewhat large fits nicely with room to go crossfire later on. Unlike many cases in this price range, their were no sharp edges to slice yourself on, and the blue LEDs on the front are a nice touch(again, just the right brightness).
Cons: Although i did mention the front door being sturdy, it is closed by a latch. And no matter how well built a latching mechanism is, it will eventually break . I would have preferred a magnet to a latch, but magnets can break also, so i guess this is just a personal preference. Only two usb ports on the front.
Other Thoughts: Well designed, sturdy with plenty of airflow and room to expand. With an instant discount and a rebate this is a steal. Great case overall.
Did you find this review helpful? Yes No

awesomeness

white Reviewed By: bob on 5/3/2009
Rating + 5
Tech Level Tech Level: high - Ownership: more than 1 year
Pros: sturdy, high quality construction, extremely effective cooling, its big enough that you could put pretty much anything in it you wanted to
Cons: doesn't come with a power supply - not really a con for me, i already had one
Other Thoughts: its big. i had to take the feet off of the bottom so it would fit where I wanted it.
Did you find this review helpful? Yes No
Model
Brand XION
Series Onyx
Model XON-303
Spec
Type ATX Mid Tower
Color Black/Blue
Case Material Steel
With Power Supply No
Power Supply Mounted Top
Motherboard Compatibility ATX. Micro ATX
With Side Panel Window Yes
Expansion
External 5.25" Drive Bays 4
External 3.5" Drive Bays 2
Internal 3.5" Drive Bays 5
Expansion Slots 7
Front Ports
Front Ports 2 x USB2.0 ; 2 x Audio
Cooling System
80mm Fans No
120mm Fans 1 x 120mm Black Front Fan, 1 x 120mm Black rear Fan
140mm Fans 1 x 140mm Blue LED Fan
Side Air duct No
Physical Spec
Dimensions(L x W x H) 20.3'' x 8.1'' x 17.5''
Features
Features Unique XION Stylish Front Panel and Power Switch design, Front Air Vent for Heat Conduction.
Silent 140mm LED Fans improve airflow inside the case.

Introduction

Xion made the Onyx XON-303 case with all the options included, all the requirements exceeded, and the price a knockout. They started with the basic option that most cases skimp on, the fans. The designers went big for maximum air flow with a 120mm intake fan up front, and another 120mm exhaust fan in the rear. Not content with that though, a 140mm blue LED fan was mounted on the side panel window to breathe relief directly onto the motherboard.

Up front wasn't forgotten either, with the spacious four 5.25" and two 3.5" external drive bays, all protected with style behind their door. Inside is just as impressive with a massive five bays for the internal hard drives. After that the only thing missing is the most important, durability. And there will be no doubt that it wasn’t forgotten when you feel the stability of its steel construction.

Highlights

newegg Excellent Expandability with 11 Drive Bays
Boasting four external 5.25" drive bays, two external and up to five internal 3.5" drive bays, the XION Onyx XON-303 provides superb expandability.
newegg Optimal Airflow
The XION Onyx XON-303 features two 120mm fans at both the front and rear to construct the optimal airflow passage through your case. One 140mm side fan with VGA card vent delivers even greater system cooling performance.
newegg Transparent Side Panel Window
The XION Onyx XON-303's fantastic transparent side panel window provides a direct view of the inner system.
newegg Convenient Side I/O Panel
The convenient side I/O panel enables easy access to two USB 2.0 ports and two audio ports.

Photo Gallery

XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail
XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail XION Onyx XON-303 Black/Blue Computer Case With Side Panel Window - Retail

Quick Specs

BrandXION
Case MaterialSteel
Color2-Tone
Motherboard CompatibilityATX
TypeATX Mid Tower
External 5.25" Drive Bays4
External 3.5" Drive Bays2
Internal 3.5" Drive Bays5
Expansion Slots7
120mm Fans2
140mm Fans1
Front PortsUSB, Audio
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Item#:N82E16811208021
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