Lexa S

Mid-Sized Tower






Black Steel Mid Tower

NZXT celebrates the rebirth of the Guardian 921 with the renewed Guardian 921 RB.  Expanded upon its predecessor, Guardian 921 RB reflects the gamer design, structural integrity, and temperature monitoring system of the original while displaying a wide range of new features to complete the system builder’s dream budget case.  New features include a bottom oriented power supply mount, CPU heatsink cutout, and an extra 140mm fan slot.  Game beyond your limits with Guardian 921 RB.


NZXT Crafted Series Design: NZXT's latest addition to the Crafted Series 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


Tech Spec.

Size Mid Tower
Model Number LEXS-001BK Black
Drive Bays 3 DRIVE BAYS
Cooling System FRONT, 1 x 120mm , 23db/42CFM (included)
SIDE, 1 x 120mm LED fan@1200RPM, 23db/42CFM (included)
TOP, 2 x 140/120mm (1 140mm included)
REAR, 1 x 120mm, 23db/42CFM (included)
Filters Front (Included)
Bottom Rear (Included)
Clearance CPU COOLER CLEARANCE 141.0mm (with fan) 166.0mm (without fan)
Dimensions 196mm(W) X 480mm(H) X 528mm(D)
Material SECC Steel, ABS Plastic
Motherboard Support ATX, MICRO-ATX, BABY AT
Expansion Slots 7
External Electronics 1 x Audio/Mic, 2 x USB 2.0, eSATA
Product Weight 7 kg
Warranty 2 years

Expert Reviews (21)

  • Computer Shopper

    One of the better budget-to-midprice PC cases we’ve seen, the Lexa S is stacked with thoughtful features for gaming-PC builders more..

  • RB Mods

    In all, the NZXT Lexa S is a great case for the money (~$80). It looks sleek and stylish, and the black painted interior completes the look. more..

  • What if Gaming

    The NZXT Lexa S outperforms in major areas for a beautiful price point that cannot be argued. While small problems exist with stand-off motherboards, the majority of the features far outrank one of the negatives. The NZXT Lexa S is simply marvelous. more..

  • Overclockers Online

    . NZXT has fired off a new case once again, and has hit several consumers with a myriad of attractive features alongside powerful performance. more..

  • Hi Tech Legion

    “The NZXT Lexa S is an extremely well built case for the money. There is a great deal of room within the interior to accommodate just about any system you could wish to put into it ... more..

  • Benchmark Reviews

    The Lexa S computer case represents an excellent value for budget-builders. I've seen cases in the $120 range that don't offer the features and construction quality this case does. more..

  • NeoSeeker

    Selling for around $90 US you get plenty of bang for the buck and should be happy with what you get. more..

  • Game Front

    Selling for around $90 US you get plenty of bang for the buck and should be happy with what you get. more..

  • Bona Fide Reviews

    The fact that the motherboard is cut out to allow you to easily swap CPUs is a great feature that I think should be on every motherboard tray. more..

  • Noticias 3D

    Filtros anti polvo, agujeros para la ordenación de cables, panel lateral con eSATA incluido... No necesitamos mucho más para un PC ordinario... o no tan ordinario, ya que incluso hay espacio para tarjetas gráficas muy largas more..

  • Think Computers

    The complete black coloring scheme can make it similar to other cases, but the black tinted side panel window gives it that extra benefit. It has a lot of features for a small price of around $89.99 at your favorite online retailer more..

  • The Best Case Scenario

    The case now has a place of honor in my house, and I will continue to use it not out of the concept of "it's a case" but because it is a great example of how to do it right. more..

  • BCC Hardware

    Features like built-in fan control, and the inclusion of 4 case fans are a couple of the biggest features that makes the Lexa S very attractive to the consumer. more..

  • Overclocker's Club (OCC)

    The small accents, like the tinted plexiglass with the beveled edges, the steel mesh drive covers and the two plastic strips on the front that glow blue, are all subtle details that make the appearance of this case superb. more..

  • Bjorn 3D

    NZXT has brought us a chassis that is small and compact enough to be toted around easily for LAN parties while giving enough air flow to keep our computer components cool. The Lexa S also is stylish enough to become a show stopper for our friends and fami more..

  • Legit Reviews

    If you are planning on an air cooled system you won't find many cases of this build quality for under seventy bucks like this one is. more..

  • Overclockers HQ

    And finally those looking for a mean, intimidating case, with the look of some evil knights helmet why not consider the NZXT Lexa-S Crafted Series Gaming Case. more..

  • Hardware Secrets

    We think this is a terrific product for the user that is on a budget and is looking for a good product. more..

  • High Tech Review

    The overall fit and finish of the NZXT Lexa S is top notch and it should be anyone's short list for a second computer or perhaps one for the son, daughter, wife or mistress more..

  • Pure Overclock

    Wiring complaints aside, this is a superbly crafted case at a great price. more..

  • OverClockers Intelligence Agency (OCIA)

    Those with a greater selection of hardware to install may want to look for something with a bit more room, but for an average mid-tower user the Lexa S makes a perfect choice. more..

Manuals and Drivers

English manual

FAQ Support