Scan code: LN45330 Manufacturer code: SST-FT03B-Mini USB 3.0

Silverstone Fortress Mini ITX PC Gaming Case

Silverstone FT03B-Mini USB 3.0 Fortress Tower mini-ITX/DTX, Black w/o PSU (SFX PSU)

Thumbnail 1 : Silverstone Fortress Mini ITX PC Gaming Case Thumbnail 2 : Silverstone Fortress Mini ITX PC Gaming Case Thumbnail 3 : Silverstone Fortress Mini ITX PC Gaming Case Thumbnail 4 : Silverstone Fortress Mini ITX PC Gaming Case
Scan code: LN45330 Manufacturer code: SST-FT03B-Mini USB 3.0
3xs Approved
£109.99Item currently awaiting an ETA
Pre order
From £9.88 / month (APR 14.9%)
Monthly Payment: £19.09
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £109.99
Total inc. interest: £114.51
Monthly Payment: £9.88
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £109.99
Total inc. interest: £118.49
If you are approved for a credit limit with PayPal Credit and use it for future purchases, the APR for those purchases won't be more than 17.9% and may be even lower.

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Purchase Rate: 17.9% p.a. (variable)

Representative: 17.9% APR (variable)

Assumed Credit Limit: £1,200

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Delivery Options
  • By DPD to your specified address. | £11.50 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

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  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Product Overview After releasing the ground breaking Fortress FT03 chassis in 2011, SilverStone engineers took on the challenge of making a smaller version to further increase the appeal of this unique computer form factor. Through intelligent planning and reengineering, the engineers were able to create the FT03-MINI, which improves on the simplistic design of the FT03 while reducing the size by 50%. Using 2.5mm thick, sand-blasted and anodized aluminum outer shells with no cable connectors and vents on all four sides to complement an efficient, organized layout, this chassis helps SilverStone to again set new standards in small form factor computers.

The interior of the FT03-MINI utilizes SilverStone’s unique stack effect cooling layout so a Mini-ITX motherboard is mounted in 90 degree rotation to take advantage of hot air’s natural tendency to rise. The FT03-MINI can accommodate graphic cards up to 10”, support one 3.5” and two 2.5” drives, and even entry-level liquid cooling can be installed to satisfy needs of enthusiasts. As the new small form factor chassis addition to the Fortress series, the FT03-MINI is truly a paradigm. Features • Super mini footprint design with no cables and vents on four sides
• Ample space for CPU cooling (78mm in height)
• Elevated standoff for motherboard back side components
• Includes 140mm Air Penetrator fan and support entry level liquid cooling
• Support for two 2.5” SSD/hard drives and one 3.5” hard drive
• Mini-DTX / Mini-ITX motherboard & SFX PSU compatible
• Standard-length expansion cards support (10 inches)
Core Chassis Specifications
Case Edition  
Case Form Factor  
Motherboard Form Factor Mini-ITX
I/O, Bays & Expansion
Front/Side/Top Panel I/O
  • 1 x Headphone
  • 1 x Mic In
  • 2 x USB 3.0
Drive Bays
  • 2 x 2.5" Internal
  • 1 x 3.5" Internal
  • 1 x Slim Optical
Standard Expansion Slots  
Vertical Expansion Slots  
Fans & Filters
Fan Bays 1 x 140mm
Fans Included 1 x 140mm
Fan Controller/Hub  
Dust Filters  
Liquid Cooling Support
Front Radiator Compatibility  
Top Radiator Compatibility  
Bottom Radiator Compatibility  
Rear Radiator Compatibility  
Side Radiator Compatibility  
Max CPU Cooler Height  
Max GPU Card Length  
Max GPU Card Width  
Cable Routing Space  
Side Panels
Window/s No
Window Configuration  
Window Construction  
LED Lighting Functionality
LED Lighting No
LED Lighting Emitters  
LED Lighting Colour  
LED Lighting Support & Control  
Power Supply Compatibility
PSU Included No
PSU Wattage (If Included)  
PSU 80+ Rating (If Included)  
PSU Support  
PSU Mounting Location  
Max PSU Length  
Chassis Physical Specifications
Colour Black
Chassis Contruction Materials Aluminium / Steel
Dimensions 188.9 x 397 x 235.1 (WxHxD mm)
Please Note  

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
7 days
RTB Period:
12 months
Manufacturer Contact Details
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Silverstone FT03B-Mini USB 3.0 Fortress Tower mini-ITX/DTX, Black w/o PSU (SFX PSU) is rated 3.5 out of 5 by 6.
Rated 5 out of 5 by from Overall great mini-ITX case The case looks great and is laid out very well. Panels snap on/off very easily. It can be tricky working inside the case, but that's to be expected for a small case. I fit a Z87 ASRock MoBo and GeForce 750Ti GTX video card in without much difficulty. Be sure that you an STX-format power supply. This is one of the smallest mini-ITX cases around and it won't fit ATX power supplies. Overall very happy with this case. If you want a small, sleek-looking build then this is for you.
Date published: 2014-10-03
Rated 1 out of 5 by from Poor cooling for GPU. Bought this case after reading lots of positive reviews to use as a small gaming rig. The recommendation for the GPU is a rear exhaust. In reality there are not many high end GPUs that have this design, as most are top down cooling. You are also very limited by the GPU length. I managed to squeeze in an MSI GTX770 Twin Frozr without any modification. However, after running FurMark for 30 minutes the GPU was running at 100 degrees Celsius and smelt like electrical burning. The GPU throttles at 100 degrees. After taking off the front panel, the GPU temps immediately dropped to a more realistic 60 degrees C. The fan noise also became bearable. Seeing as nearly all high end GPUs have a top down design and are longer than 10" then I feel this case doesn't give any future proofing. The new GTX 900 series also look to have this design. I've subsequently sent this case back for a refund and ordered an Ncase M1. I cannot fault the way it looks and the build quality is awesome. Hope this helps.
Date published: 2014-09-11
Rated 4 out of 5 by from Tight fit Managed to get a 760 GTX in this but it was a really tight fit, extremely fiddly to get everything in. I have 1 3.5 HDD and 2 2.5 SSD's as well as the slot loading DVD player. The wiring is quite a mess and not much room to manage it but when things are this small it is to be expected. My only reservations are that it is on the expensive side considering you need to also buy a more expensive laptop slot loading drive (if you want an optical drive that is) and SFX power supply. Also the panels aren't as secure as I would like and would of preferred screws to the clips they use to keep them in place (this would only be a problem if you move your pc around a lot, which most won't I guess), that being said the build quality is excellent.
Date published: 2014-01-10
Rated 5 out of 5 by from Best gaming PC case I have ever bought A gaming PC doesn't need dozens of PCIe slots or racks of hard drive bays, so I was looking the for smallest possible case that would fit my beast of GPU and this was it. Admittedly it's tight squeezing everything in there, and requires planning, but I have two drives (SSD and HDD) as well as top-class Nvidia GPU and i7 CPU in my FT03-Mini case. I went one step further replaced the stock fan and CPU fan with water-cooling and a radiator on the bottom. So my case is silent too, and that fitted with no problem. I love the snap together aluminium side panels, makes it easy to put together and maintain, but you have to be careful if you are carrying it about. One point: maximum length of cards this case can take is 10-inches which is great for GTX680 but means a Titan won't fit as it's 10.5 inches long. If they updated this case in a version 2.0 that allowed longer GPUs I would buy one in a heartbeat. Brilliant.
Date published: 2014-01-06
Rated 1 out of 5 by from A lot of money for low quality Very disappointed as the panels are not aligning properly. And not holding them that strong either, which makes moving the case a very delicate procedure. I know you might think "So what there is a 3mm gap on one side", well at THAT price I would expect at least no gaps. And also the styling was the main reason for buying this case, now it just looks odd... Also one of the panel holders (pin) came broken. Very disappointed. (attached photo, check for yourselves)
Date published: 2013-12-06
Rated 5 out of 5 by from Finish is high and space is tight Brilliantly small case which was just what I was looking for, looks great on my desk, little niggles with it would be the bottom fan is a bit noisy at full load and the top gill is plastic which does detract a bit from the overall looks. It’s a very tight fit to get everything in but if you research all your components you should have a problem.
Date published: 2013-09-10
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Questions & Answers

Will a Silverstone Strider 500W SFX PSU fit in this case?

I need at least a 500 watt psu to power a AMD R7 370.
Asked by: Bardi
Hello, Yes any SFX PSU will fit in this cae. Thanks,
Answered by: LizN
Date published: 2015-10-24
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Silverstone Fortress Mini ITX PC Gaming Case
Silverstone Fortress Mini ITX PC Gaming Case