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NZXT Guardian 921 RB ATX Mid Tower Case, Black 921RB-001-BL

4.2 out of 5 stars 504 customer reviews

Price: $73.02 & FREE Shipping
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Black and Blue
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  • takes cues from gaming culture with elegant curves and a newly designed clear side panel
  • Spacious Interior and Solid Construction: Built from solid .88mm and 1.00mm steel, the Guardian 921 gives the user ample space for large, high-end video cards and space for up to four internal hard drives
  • Constant Temperature Monitoring: Three temperature probe monitoring system allows the user to constantly gauge thermals within the system at all times to prevent overheating
  • Multimedia and peripheral inputs: E-SATA, Intel HD audio, mic, and two USB inputs are standards with the Guardian 921 allowing for maximum peripheral input
  • Silent Cooling: Comes standard with 3 120mm fans installed to maximize cooling performance with minimal noise
  • Updated Design: The all new Guardian 921 RB features a bottom mounted PSU, CPU heatsink cutout, and an extra slot for a 140mm fan at the top for more cooling performance. The all new Guardian 921 RB comes in both red/blue LED combinations
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$73.02 & FREE Shipping In stock. Usually ships within 4 to 5 days. Ships from and sold by Silhouette Goods.

Frequently Bought Together

  • NZXT Guardian 921 RB ATX Mid Tower Case, Black 921RB-001-BL
  • +
  • WD Blue 1TB SATA 6 Gb/s 7200 RPM 64MB Cache 3.5 Inch Desktop Hard Drive (WD10EZEX)
  • +
  • Asus 24x DVD-RW Serial-ATA Internal OEM Optical Drive DRW-24B1ST (Black)
Total price: $143.77
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Compare to Similar Items


This item: NZXT Guardian 921 RB ATX Mid Tower Case, Black 921RB-001-BL
Customer Rating 4 out of 5 stars (504) 4 out of 5 stars (272) 4 out of 5 stars (717) 4 out of 5 stars (5)
Price $73.02 $54.99 $96.99 $79.76
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Silhouette Goods Amazon.com Amazon.com Amazon.com
Dimensions 20 inches x 18 inches x 8 inches 8.5 inches x 20.2 inches x 18.2 inches 20.31 inches x 20.94 inches x 8.46 inches 18.1 inches x 20.6 inches x 8.1 inches
Item Weight Information not provided 10.2 pounds 15.43 pounds 18.1 pounds
Material Steel Metal Steel / Plastic Steel Plastic
Supported Motherboard ATX Mini-ITX ATX ATX
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Color: Black and Blue

Guardian 921 RB Mid Tower Black with Blue LED

Product Information

Color:Black and Blue

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Number of USB 2.0 Ports 2
Brand Name Nzxt
Item model number 921RB-001-BL
Item Weight 18.2 pounds
Product Dimensions 18 x 8 x 20 inches
Item Dimensions L x W x H 18 x 8 x 20 inches
Color Black and Blue
Audio-out Ports (#) 1

Additional Information

ASIN B004351H9G
Customer Reviews
4.2 out of 5 stars 504 customer reviews

4.2 out of 5 stars
Best Sellers Rank #243 in Electronics > Computers & Accessories > Computer Components > Computer Cases
Shipping Weight 18.2 pounds (View shipping rates and policies)
Date First Available September 15, 2010

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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Customer Reviews

Top Customer Reviews

Color: Black and Blue Verified Purchase
-------------- UPDATE ---------------

It's been over three years since I purchased this case; in that time, I've upgraded and replaced literally every piece of my computer except this, and the power supply. This continues to be my case of choice, and serves me as well as the day I got it, but I would like to add a few small precautions.

Large graphics cards may be an issue, depending on the card and your motherboard. I now have an EVGA GTX 770, with the eleven-inch Windforce 3 cooler on it, and fitting it into this case has been a bit awkward. When I used my old AMD motherboard, the PCI-E slot happened to be in such a location that I could just slide the tip of the graphics card into the 3.5" drive bay, and everything was fine. I have since upgraded to a newer Intel motherboard, however, and the PCI-E slot was higher up on the board, causing the tip of the card to collide with the bottom of the 5" drive bay. The overlap was minimal, and I was able to use some pliers to forcibly bend the edge of the drive bay down to allow the card to (barely) fit in, but if you use a particularly large card you may need to find a slightly roomier case.

The hinges for the plastic door that covers the drive bays squeak a bit from time to time, and there's a small crack toward the top of the case where the LEDs illuminating the three built-in temperature readouts shine through. Otherwise, however, I have still had no problems with it; the fans run as well as the day I bought it, the cables are doing fine, and everything sits as it should. In general, I still recommend this case after 3+ years of use.
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Color: Black and Blue Verified Purchase
Great tower, its an around great package. I'm gonna break it down in two parts, first in looks then in performance.

Looks: What else can I say rather than it looks very nice, the blue LEDs in the front are very slick and the blue LED lit fan on the side of the case looks very nice as well. The temp display on the top should be a bit brighter though, at night or in a dark room it looks fine, but in daylight or far away, it can be hard to see. Only minor complaint besides the display not being bright enough on the top of the case is the side glass panel. It's a good quality build and looks very nice, however the stock picture leads you to believe that the side panel is well lit up and you can see the inside components with ease. This is not the case, The LEDs on the fan do not light up very much of the glass or the inside of the case so you would need to buy extra lights in order to light it up well in there. Other than that, very happy with the looks of this case.

Performance: There are a few things I can touch on, firstly the airflow, the airflow is great, I put my hand on the air vents and it always feels very cool, most I've felt is slightly warm air, never hot, but I guess that also depends on the type of parts you use inside and whether your parts are beastly and produce lots of heat or not. In either case, the case is roomy and provides with good airflow.

When I bought this case I didn't see many holes so I thought cable management might be an issue, but after putting all parts together and hooking them up I found that it has pretty decent cable management options.
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Color: Black and Blue Verified Purchase
Finally finished piecing together my new PC and gave it some time to test it out. Most of my decision making was the result of reviews from here (Amazon) and forums on tomshardware.com.

-NZXT Guardian 921 RB ATX Mid Tower Case, Black 921RB-001-BL
-Intel Core i5-3570K
-Windows 7 Home Premium 64bit
-EVGA GeForce GTX760 SuperClocked w/ACX Cooler (02G-P4-2765-KR)
-Corsair Vengeance Blue 8GB (2x4 GB) (CMZ8GX3M2A1600C9B)
-Gigabyte Intel Z77 LGA 1155 (GA-Z77X-UD3H)
-OCZ Technology Fatal1ty 750W (OCZ-FTY750W)
-Intel RTS2011LC Liquid-Cooling Kit
-Samsung 840 SSD 500GB (MZ-7TD500BW)
-D-Link AirPlus DWL-G520 Wireless PCI Adapter(rev.B)

Boot up is less than 10 seconds from power button to login. At resolution 1920x1200 with most settings on high (using NVidia GeForce Experience recommendations) gameplay is smooth and pretty with Assassins Creed IV, League of Legends, Rage, Path of Exile, Diablo 3, StarCraft 2, & Heroes of the Storm. All the fans are not loud at all and go unnoticed with the box under my desk. The lights look awesome from the fans, psu, & Intel CPU cooler. The case has 3 thermometers labeled for CPU, HDD, and SYS. They make for a nice LED display on the front but placing them in the case is a little tricky. I use HWMonitor to watch temps and so far nothing has gone over 55 Celcius. Gigabyte has some proprietary software w/ their motherboard. I have attempted the auto overclocking program labeled EasyTune but have not had much luck with it. Ended up keeping CPU at it's original 3.4 GHz since there isn't really a need to push it more than that currently. In the future I may try manually overclocking in the BIOS. The BIOS is extremely easy to navigate and has a plethora of configuration options and adjustable parameters.

Overall, system works flawlessly and is everything I wanted with the potential for easy upgrading in the future. Hope this helps if anyone is shopping around and doing some research.
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