Obsidian 750D Full Tower Case - Black (CC-9011035-WW)

  • The Obsidian Series 750D full tower PC case combines generous expansion flexibility
  • room for advanced cooling options
  • and fast and easy builds and upgrades.

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£139.99 *
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Stock Code: CA-157-CS

EAN: 0843591043786

MPN: CC-9011035-WW

Manufacturer: Corsair

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Product information:

Obsidian 750D Full Tower Case - Black (CC-9011035-WW)

The Obsidian Series 750D full tower PC case combines generous expansion flexibility, room for advanced cooling options, and fast and easy builds and upgrades. It has a clean, elegant exterior that dispenses with arbitrary plastic add-ons in exchange for the beauty of brushed aluminum and solid steel. This rigid, rugged exterior surrounds a frame that has ample room for high-performance components and the sophisticated cooling you’ll need if you’re going to push those components to their limits. And, it incorporates a host of clever system builder-focused features, because building a system should be straightforward, trouble-free, and even fun.

- Generous expansion room for building high-performance systems.
- Beautiful brushed aluminum fascia makes an elegant design statement.
- Full side panel window to view your components.
- Tool-free SSD, Hard Drive, and Optical Drive installation.
- Includes three AF140L fans, with room for up to eight fans.
- Designed for fast and straightforward builds.

Modular drive cage system for highly customizable layouts.
- Two modular drive cages house three 3.5¡¨ or 2.5¡¨ drives each.
- Four tool-free dedicated SSD cages, sideways mounted.

Radiator and fan compatibility compatibility:
- Top: 3 x 120mm or 2 x 140mm
- Front: 2 x 140mm or 2 x 120mm (2 x 140mm included)
- Bottom: 2 x 120mm
- Rear: 1 x 140mm or 120mm (140mm included)

- Two USB 3.0 and two USB 2.0 front panel connectors, plus headphone and microphone.
- Easily accessed front, top, and PSU dust filters.
- Excellent cable routing with rubber grommets for clean builds.
- Nine expansion slots for multiple PCI-E devices or large motherboards
- Maximum CPU Cooler Height 170mm
- Maximum GPU Length 450mm

- Unboxed Product Dimensions (L x W x H): 21.5" x 9.25" x 22"

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Product Specification:

Case type
Form Factor
Side panel
Main colour
Accent colour
Noise dampening
Width (exact)
Height (exact)
Depth (exact)
200 - 300 mm
500 - 600 mm
500 - 600 mm
Aluminium, Plastic, Steel
Weight (exact)
8 - 10 kg
USB 3.0
Audio output
Audio input
Internal 2.5" bays
Internal 3.5" bays
External 5.25" bays
PCI slots
Motherboard tray
Cable management
Front LCD/TFT display
Power supply
Power supply format
Power supply position
Rear Lower
Fans pre-installed
3x 140mm
120mm Fan
140mm Fan
Fan colour
Black, White
Fan controller
Card reader
Front door
Position I/O
HDD anti-vibration
1x Triple (360mm), 2x Single (120mm), 2x Single (140mm), 2x Dual (240mm), 2x Dual (280mm)

Customer review

75% (9)
17% (2)
0% (0)
8% (1)
0% (0)
Star Rating

Average customer rating

(from 12 customer reviews)
All Time (12)

Poor Build Quality

Overall I like the case, it seems well thought out in terms of space and air flow, however I found the build quality to be some what dicey, for example:
- the HDD drive bays were bent to buggery.
- and the front panel cables were simply not long enough to reach the motherboard, even using the most direct route possible, in the end I had to buy a 10cm extension cable to solve this.
- the side panels are a little out of true, suggesting the case as a whole is slightly warped.
- and the cable management system isn't very well thought out


Simply Amazing

This was my first PC that I built and I am simply glad I have bought this case. The cable management was so easy to do and made my system look really neat and tidy. There is so much space at the back that it wasn't a tedious process like I thought it was going to be.

It looks great, nothing to over the top, just simple and 'mature'. The best thing about this though is the amount of options you get for upgrading. I will not be changing this case for a while as it will suit any upgrade that I might do.


Corsair 750D

Bought this case for a new comp set up, was tempted to get a cheaper or on offer case, but glad i spent the extra. Its massive..... Enough space to do what ever you like in it. Seen a few reviews on it saying is "good" for water cooled radiators on the top, but not excellent as you have to sacrifice the top bay which is what i intend to do.... Very nice looking and proper solid construction. You will not be dissapointed. Overclockers delivery is without a doubt the best delivery from any company, i have ever ordered from and yes cheers for the Haribo. :).


Great case

This case is of brilliant build quality and has ample space for most rigs. As of yet I can find nothing that I dislike. Cable management is first class and the overall look and style of this case is stunning. The side panel with the clear perspex cutout is ideal to show off your new build. Throw a few LEDs in there and you're laughing.


Well worth the money

This case was initially recommended by a friend. I took a look at it and decided to do some further research on other cases because I'm not a fan of side windows (old fogey!) but I kept coming back to this one. I'm fussy about noise and airflow and I'd spent quite some time both quietening down my old Antec 300 and giving it the best possible through flow of air. This case looked like I wouldn't have to spend so much time figuring it all out.

It makes building a new PC really easy. Cable management makes the Antec 300 look like a dinosaur and the cooling was such that I actually took out the top 140mm fan for being superfluous. I also removed all of the unwanted 2.5" drive bays - full marks to Corsair for making this possible. The 3.5" no-screw drive bays are so well designed that you can mount the drive into the cage and then slide the cage in upside down, something I had to do because the SATA power connecters wouldn't quite stretch from one side to the other with all the drives in 'normal' orientation.

One minor problem that took me all of two minutes to figure out. Corsair assume that everything mounted into a drive bay will be drive-sized. This is not the case if fitting something like a fan controller. To get at the screw holes you need to remove the plastic cage latches. To do this, squeeze the top and bottom of the cage latch hard between finger and thumb and it will pop out of the side of the drive cage, thus exposing the screw holes.


Well worth the price!!!

While the price may put you off ..... it is worth it . The included fans are quiet but the front bottom one does not reach my motherboard fan header , overall 4 stars .It is very modular and the cable management is fantastic , a joy to assemble a new pc in ;)!
the build quality is good but not incredibly, everything fells sturdy....Suiting my I7 nicely and temps down 10'c .


A perfect case if you're not watercoolin

If you are trying to mount a motherboard with thermal armour, then please be aware that the ASUS Maximus VI Formula ROG armour does not fit the integrated motherboard standoffs on the 750D properly. The backplate partially obstructs some of the screw holes, so you might need to read up on some work around, such as installing the armour without the backplate on or in my case, removing the armour altogether.

A thick 280mm radiator at the top blocks off the cable routing holes and also encroaches on the motherboard 12v power cables and whatever else may be at the top of the motherboard that sticks out; unless you attach 120mm fans with adapters or mount the top fans externally. Additionally, you cannot install a 140mm radiator at the back of the case with a thick 280mm radiator at the top. I would recommend either a thin 280mm radiator, thick 240mm radiator or thick 360mm radiator if you don't mind the top 5.25" bay being closed off. Bear in mind that ANY thick radiator will limit the room you have to work with at the top of the motherboard and may put pressure on the 12v power connectors if it is 60mm+.

I should also mention that the XSPC D5 Dual Bay Reservoir/Pump Combo V2 does not quite fit in this case properly. The bezel around the front of the unit is 1-2mm too wide, so you cannot push it all the way in and secure it with screws unless you're willing to file the front panel of the reservoir down slightly.

Accessing the fill port of the reservoir also becomes an issue. You have to remove whatever device is sitting above it, and if that's a fan controller then it might mean detaching all fans and cables before you can get to the fill port. Overall, it may be worth sticking to a separate pump / internal reservoir solution for this case.

The top detachable mesh of the case acts more as a vent, because the holes are really not dense enough to protect against dust, so I've had to purchase a separate dust filter to sit on top of that.

Although for the most part the 750D is a pleasure to work with, I've had to mark it down to four stars because of small but niggling problems. If it were only 1-2 cm taller, then thick watercooling radiators would fit without issue. It would have been great if there was at least one more 5.25 bay; if you're fitting a dual-bay reservoir like me then that only leaves one bay for other devices, unless you've fitted a 360mm radiator, in which case you'd have none left. Overall, a perfect case if you're not watercooling, a great case if you are.


Awesome Case!

It looks freaking AWESOME! The huge sidepanel window allows you to look through into your PC, and with some Corsair AF140 fans it looks amazing! I upgraded from a


Great Case Geat Value

Well I have to say OC did it again with great service, ordered Thursday morning arrived Friday noon.
Built new system and tested in a couple of hrs, looks great added a few more fans for extra cooling as running SLI.
Will probably add some lighting to show of the contents a bit more.
So any one out there after a case that can take most parts( plenty of room for watercooling) and want stlye and value for money this case is the one.



Amazing looking case with loads of bells and whistles! Very roomy inside, easy to work with. Cooling capabilities are immense - comes with 3 big fans prepacked but if you wish you can add many more. Lovely finish, looks expensive and well thought through. The front panel can be opened with just a simple push which increases the air intake significantly for those high demand moments. The top dust filter can be very easily removed for cleaning as well as the front filter behind the panel.

The only small issue is that it only comes with 2 standoffs even though the product description says four. Did not bother me as the inbuilt standoffs are just find for ATX and bigger motherboards, but apparently mATX users might struggle due not having enough standoffs.


Excellent case !

10/10 Bought the case Fri afternoon, delivered next day 8.00am Great service as always! Ive been through a ton of cases, Coolermaster, cosmos s, the ATCS days :) Lian Li general alumimum builds, last one was HAF X. HAF X is good it just felt plastic and not well thought out in terms of hd mounts cpu cutouts not done well at all. This was the time to change to either corsair 900d or 750d or cosmos 2. If corsair don't improve on the 900d, designwise ill end up getting that in 6 months. This case is slightly smaller, perfect for my needs, running a single loop on cpu, gpu 360mm rad on roof. What can I say? Its well thought out, interior space, clean polished exterior and ample space to do a simple watercooled setup. If your torn between 900d and 750d like I was, ask yourself, how much watercooling are you really going to do? A simple cpu gpu liquid cool? This was enough for me. Im running a single 680 if went sli I would have gone for 900d purely for space management.



Upgraded from an Antec 900 case and my god this thing is a monster. It's huge! Plenty of room install the PC and then some more. Brilliant cable management and the fans are top quality. I have installed another 5 fans into and the corsair link and cooling kit and it just beams. The best buy! Totally recommend! Super service from OCUK.


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