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  • The Mercury S8
  • Form Factors
  • Stealth HDD/SSD Mount (2 HDD or 4 SSDs)
  • Top Chassis Mounts
  • Top Covers
  • Doors (left side)
  • Doors (right)
  •  Flex-Bay Configurations
  • Front Covers
  • I/O Panel
  • Lower Left Chamber Options
  • Rear
  • Included Mounting Plate
  • Mercury S8 and Pedestal
  • Colors

Mercury S8 - Customizable

Calculated at checkout

Product Description

This is a special order item. Please check our resellers listed HERE for currently stocked cases and accessories. 

Flex-bay Configuration: Solid Bay Covers

Mercury S8 Case Features: (click the links below for full desrciptions)


Technical Specs  
Base Price (US Dollars) $439.95
Flex-Bays (5.25 bays) 9
PCI Slots 8
Motherboard tray size (width x height) ATX: 9.44" x 13" (240mm x 330mm)               SSI-EEB: 12.81" x 13" (325mm x 330mm)
Native HDD Locations 0-6 (stealth mount: 0-2)
Native SSD Locations stealth mount: 0-4
Total possible HDD locations with extra HDD cages (using additional mounts, purchased separately) 26
Total possible SSD locations with extra SSD mounts (using additional mounts, purchased separately) 52
PSU Mounting locations 1
Weight (Pounds) 18
Optional Front I/O Panel Yes
Compatible Motherboard Form Factors  
mITX Yes
mATX Yes
E-ATX (dual CPU) SSI-EEB option: Yes
SSI-CEB SSI-EEB option: Yes
SSI-EEB SSI-EEB option: Yes

Exterior (width x depth x height)

(dimensions shown are for the case only. Rubber feet add .75’’ (19mm) to height, optional standard casters add 2.6’’ (67mm) and HD Casters add 3’’ (76mm))

14.54" x 19.03" x 18.74" (369mm x 483mm x 476mm)
Maximum Radiator/Fan clearance above motherboard tray with standard height top cover 115mm
Cooling Tower Clearance (air cooler) 260mm

Note: Exterior dimensions shown are for the case only. Rubber feet add .75’’ (19mm) to height, optional standard casters add 2.6’’ (67mm) and HD Casters add 3’’ (76mm)

Note: The S8 uses a special radiator mount in the HDD drive bay. Please see MAC-511


 ** "E-ATX" motherboards such as the ASUS RAMPAGE V EXTREME will fit in this case with the ATX option. E-ATX motherboards such as the Supermicro H8DG6 will not fit in this case unless the SSI-EEB option is selected. Please cross reference the motherboard tray size with the motherboard dimensions from the manufacturer.




Case Features and Included Accessories  
All Aluminum construction Yes
Flex-Bay System Yes
Accessory mounting System Yes
Quick Release Exterior Yes
Flex-Bay 5.25 Device Mounts - Standard (MAC-125) 2 Sets
Flex-Bay 5.25 Device Mounts - Short Adjustable (MAC-213) 1 set
Integrated Radiator Mounting (beyond 120.1/140.1) Yes
Drop-in Top Radiator Mounting Yes (optional)
Drop-in Side Radiator Mounting Yes (optional)
Anti-Vandal style power and reset switches with MDPC-X sleeved cables Yes
Compatible Radiator Sizes (may require additional mounts)  
120.1 - 120.2 (120 - 240) Yes
140.1 - 140.2 (140 - 280) Yes
120.3 (360) Yes
140.3 (420) -
120.4 (480) -
140.4 (560) -
120.9 (1080) -
140.9 (1260) -
180.3 (540) -
180.4 (720) -
Shipping Format: Domestic  
Flat Packed Yes
Fully Assembled -
Shipping Format: International                  
Flat Packed Yes
Fully Assembled -

Product Videos

CaseLabs S8 Video Review

  • CaseLabs S8 Vi...

Product Reviews

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Showing reviews 1-10 of 56 | Next

  1. Mercury S8 - Awesome case

    Posted by John Ryll on 28th Feb 2017

    This is actually my third case from CaseLabs, the first two were Mercury S5 cases; this time I wanted a build slightly larger. As expected the case arrived very well packed and in excellent condition. Assembly was easy and the case is extremely well built, no build issues whatsoever. The only draw back is the documentation could use a bit of work as I have a couple pieces that I'm not sure what their purpose is? The instructions were for generic S5 assembly. For the price a little more work at documentation would be nice. Obviously, after three purchases I am a very satisfied customer.

  2. Custom white S8

    Posted by Michael Mason on 15th Dec 2016

    Words cannot express the satisfaction of obtaining one of these. Yes it took a lot longer to receive it but we'll worth it in the end.

    My only slightly issue is the front panel doesn't quite sit flush with the power/USB attached to the frame but this probably happened in transit and not CaseLabs fault. I should be able to pressure bent the panel to align properly.

    10 stars on a scale of 5 stars! Amazing products and quality.

  3. Amazing

    Posted by Andre Bacchus on 8th Dec 2016

    I Love this case. It's really big and the build quality is amazing.

  4. Great

    Posted by Nick on 26th Sep 2016

    This case is fantastic. I waited 10 weeks for it after my 8 week processing time was delayed another two weeks and would do it all over again! Not much to say about the case that cannot be seen in the websites pictures/descriptions/dimensions/FAQ sections.

  5. The Best Case

    Posted by Chett on 24th Sep 2016

    What a case! One of the best that I have ever owned.

  6. nice case, no note about missing psu support mount

    Posted by Lars Sauermann on 10th Sep 2016

    The Case is very good. The Quality is outstanding.

    BUT WHY! is there no note about the PSU SUPPORT MOUNT!! that is needed for modern PSUs and is not included?

    Now i have to wait about 5-6 weeks for this... And can't use the case, because my PSU can't fit into the case...

    This is a bad service!

    [CaseLabs: We apologize for the delay and are in the process of expanding our facility to double production. Lead times are less than 5-6 weeks however. In any event, the PSU support is not required and should not preclude you from starting your build. Thank you.]

  7. Excellent for customization

    Posted by Unknown on 31st Aug 2016

    Easy to customize for watercooling tower behind front window. Plenty of drillable attach points for structure to hold tower. Held at top and bottom so it appears in the window without structure obscuring view into case. Top water return bubbles slightly so I can tell its running. Very compact case (especially the depth) that will sit on the desk away from dust and other floor hazards with case front even with my monitors. Assembled easily, no misaligned screw holes. Good looking unobtrusive austere exterior. Pop off panels really make access easy. Now that it is working, will measure cabling and get custom lengths to provide better cable dressing. Good job CaseLabs.

  8. Spacious!

    Posted by Charles Ball on 19th Aug 2016

    Excellent case, lots of room to work in

  9. End-game

    Posted by Jordan C on 10th Jul 2016

    I wouldn't be posting this if I weren't a PC hardware enthusiast., given the location of this review.

    So, I'll start this off in a different way. I like headphones. I spent years buying different models and comparing them, all underneath the price tag of $150 or so. Until I saved up and finally said, "Hey, this ends now. I'm dropping $600 on the HD 650 with a good DAC and amp and I'm done." That was it. Three years later and I have no impulse for any other headphone setup. Endgame achieved.

    Meanwhile, for even longer, I've been a case junkie. In the past 3 years I've used 4 cases for my desktop. I've built entirely new mITX systems just because I was excited about a new case and to see what I could do with it.

    All of these things brought slight changes in functionality, along with the driving force of some new paintjob or plastic shell for aesthetics... Friends telling me I'm nuts for having such a passion for cases. I mean, really. Computex for me has always been primarily for new case news.

    But, then I finally did it. After flirting with the customization options of the Mercury series for close to two years, I finally did it again... and clicked order. And that's it. Now I know I have my endgame chassis. The quality is impeccable. This is a tank, and once you have your system built and running, you will (I guarantee) constantly find yourself knocking on it and then running your hand across it for the first week that you have it.

  10. Flawless Case

    Posted by Gadiel Santiago on 4th Jul 2016

    This is in my opinion the best case to put a EATX motherboard horizontally so the pci slots don't get damaged when a graphics card pulls them in the vertical position. It has tons of options for any idea you can have, the only thing I wished it come with was a acrylic where the expansion bays are but it's ok I will create a custom one. Like all cases from caselabs you have tons of options and can customize it to your needs or the customer needs if you are building for someone. It can get expensive but you get what you pay for, a top of the line product that can't be found anywhere else and best of all made in US!

Showing reviews 1-10 of 56 | Next

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