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Silverstone > 
Item#: N82E16811163197

SILVERSTONE Black Aluminum / Steel Fortress Series SST-FT03B-MINI Mini ITX Media Center / HTPC Case

  • Super mini footprint design with no cables and vents on four sides
  • Ample space for CPU cooling (78mm in height)
  • Mini-DTX / Mini-ITX motherboard & SFX PSU compatible
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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.


  • newegg Slender Profile with Sleek Exterior Elegant, super mini footprint design in clean lines and subtle curves makes the SilverStone Fortress FT03-Mini more than a computer case - an adornment to your house decoration. 2.5mm thick anodized outer shells with no perforations and cables on four sides create a sleek ensemble that can seamlessly fit your home theater system.
  • newegg Massive Performance, in a Little Chassis The SilverStone Fortress FT03-Mini comes in an ultra small footprint but features innovatively designed interior layout to swallow Mini-ITX /DTX motherboard, SFX power supply, slot loading slim optical drive, 1x 3.5" HDD, 2x 2.5" HDDs/SSDs, standard expansion card up to 10" in length, CPU cooler not exceeding 78mm in height, and even entry-level water cooling for enthusiasts.
  • newegg Excellent Cooling Performance A large 140mm bottom fan along with SilverStone's unique stack effect cooling layout produces tremendous, smooth air flow to exhaust heat generating by all the components. Removable top cover constructed with a number of mesh holes guarantees maximum ventilation and serves as external cable management. Removable bottom filter is included to prevent dust buildup.
  • newegg Top-Loading Connectors Rotated 90 degree motherboard mounting design, which originates from the breakthrough RAVEN chassis positions back I/O panel and graphics card output (if discrete card installed) to the top of chassis for easy access. The removable top cover can act as an external cable management.
  • newegg USB 3.0 I/O Panel 2x USB 3.0 ports and 2x audio ports located at the top of the chassis allow easy access to peripherals.

Learn more about the Silverstone SST-FT03B-MINI


Fortress Series


Mini ITX Media Center / HTPC Case
Case Material
Aluminum / Steel
Power Supply
Motherboard Compatibility
Mini ITX / DTX


Internal 3.5" Drive Bays
Internal 2.5" Drive Bays
Expansion Slots

Front Ports

Front USB Ports
USB 3.0 x 2
Front FireWire Ports
Front Audio Ports
Front eSATA Ports
Front Card Reader
Remote Control Module
Front Display

Cooling System

140mm Fans
Bottom: 1 x 140mm Air Penetrator fan, 1500rpm
Side Air duct


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)


10.36 lbs.

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Silverstone SST-FT03B-MINI

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  • Nathaniel G.
  • 1/23/2014 12:01:52 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsSide panels came warped

Pros: Great Quality, really. Nice and thick side panels dampen noise. small formfactor.

Cons: My side panels came in warped, and do not sit flush on the back side..... really frustrating considering the price.

Other Thoughts: Just ordered a Caselabs s3 today as a replacement.

Did you find this review helpful? Yes No

  • Daniel Z.
  • 12/19/2013 9:34:25 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsExcellent Design

Pros: -Easy to remove side panels (no screws!)
-Smart airflow design
-Useful installation guide
-Works great with liquid cooling
-Everything feels high quality

Cons: -Challenging to assemble. I had to go back and rearrange cables/pull out components to get things to fit
-Not the smallest possible case
-DOES NOT FIT CORSAIR H80i WATER COOLER but fits H55 without issue
-Best to use Silverstone SFX PSU

Other Thoughts: This is my second itx build and it came together beautifully. The cable management and cooling was excellent with this case. The brackets holding the slim dvd/hdd/ssd have space that is perfect for containing extra cabling or threading cables through to the other side of the case. The only issue I ran into was the water cooler being too large (DVD bracket did not fit on top of the cooler).

I like to maximize internal airflow and do not require much storage so I opted for a single SSD, which allowed me to remove a large hdd bracket.

Intel 4770k
Corsair Vengeance 16GB
Corsair H55 liquid cooler
Silverstone ST45SF 450w PSU
Samsung 840 EVO 250GB SSD
SIlverstone slim Blu-Ray writer

The GPU states a min PSU requirement of 500W but gaming has been fine so far with the 450W.

I applied a small amount of Arctic Silver, rubbed it in, wiped off with a coffee filter, and applied the H55 with stock grease. Running Prime95 for about 45 min had temps around 67C, with one anomalous spike to 74C. Moderate browsing has temp avg in the low 30's.

Overall very happy with this case and would recommend it to a friend.

4 out of 4 people found this review helpful. Did you? Yes No

  • Gerardo D.
  • 9/12/2013 4:30:27 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent Quality And Build

Pros: Thick aluminum panels very sturdy, easily removable panels for upgrading components, plenty of room to work in, look is unique.

Cons: The ap vortex type fan from silverstone is quite loud at 1500 rpm. The reset button on top is near the power button, which should of been recessed to prevent accidental reset. The clips holding the panels are a tad too loose doesn't take much effort to pull panels off.

Other Thoughts: wished the silverstone logo was illuminated with el lighting.

Did you find this review helpful? Yes No

  • Thomas B.
  • 6/22/2013 1:46:50 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Case if you follow the Instructions

Pros: Very efficient design for handling heat dissipation. Side panels solid and included fan quiet.

Cons: Not really a con but be sure to follow the instructions when installing components as there is a specific order to follow.

Other Thoughts: Installing a EVGA 670 FTW took a little bending of the case to get it in initially but this was an oversite of mine as the Silverstone manual clearly states a max video card length of 9.8" and the 670 FTW is 10". A quick bend back and it would be very difficult to tell it was bent at all.

Silverstone FT03-Mini
Intel i7-4770K
2x8GB G. Skill Trident X Series DDR3 2400
Silverstone ST45SF 450 Watt PS
Antec Kuhler H2O 620
Samsung 256Gb 840 Pro
Western Digital Black 1TB
Windows 8 Pro

2 out of 2 people found this review helpful. Did you? Yes No

  • Darby A.
  • 5/25/2013 11:09:35 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsPlanning on using this case with an optical, or 3.5" drive? Read below...

Pros: So once upon a time, finding handheld instrumentation a bit lacking I found myself wanting to have a garage computer to throw on a cart, with a couple 24"s and some speakers to diagnose vehicles Im working on, flip on some tunes, some videos, doing some packet injection against neighborhood AP's, whatever a guy in a position of having a pimpd out garage could find himself doing with a garage computer...

Soo Yea, Nice looking case -Looks & Works well in your garage, or your office

Cons: Size (Not necessarily saying this is some huge caveat or anything, but when I got it -I was of the opinion that its ~30% bigger than what the pics n' videos allude to in height)

The other thing here is powersupplies...

In the description, they make a point of illustrating CPU heatsync as a critical dimension, power supplies also fall into this category if you have the expectation of being able to use this case with either a 3.5" hard drive and/or an optical drive -If you find yourself falling into this category, use a powersupply with a depth of 100mm or less (I had first ordered a seasonic PS for purposes of using with this case, and found it to be too long -Ive since replaced it with a Silverstone PS & this now works as expected, Yes I took an egg off for disclosing the CPU cooler dimensions, and NOT PS dimensions)

Other Thoughts: Not a big thing, but ALL cables use the top plastic grill as a entrance facility -Woulda been nice to have a knockout (or a 2nd back panel with a hole in it?) to run cables out of the back as opposed to the top

2 out of 4 people found this review helpful. Did you? Yes No

  • Carl M.
  • 3/1/2013 8:13:31 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsUnique

Pros: Strong, solid, well built. Easy to work on considering how compact it is. The giant fan is audible but low enough that you don't usually notice it.

Cons: Even Silverstone's own modular PSU doesn't fit in the case without taking the 3.5" drive bracket out and bending a few things.

Other Thoughts: Maybe go with a DC PSU, if you can. It might be small enough to fit properly.

1 out of 1 people found this review helpful. Did you? Yes No

  • Marcos S.
  • 9/25/2012 9:09:15 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsMy new form factor

Pros: Very durable, heavier than most cases of this form factor but just made well. It looks sleek and puts me in a good mood every time I stare at it. Fits all the hardware I chose for it and was rather easy to put together.

Cons: I wish the reset button wouldn't protrude and would have designed something a bit more recessed, I can confuse the power button for the reset. Not a big deal though.
I bought a 350 Seasonic SFX power supply, and it fits in the case, but I had to remove the hard drive bay and couldn't mount my second drive to the bay, so it's just lying/hanging inside the case next to a bunch of cables. I probably should have bought the Silverstone SFX power supply that is modular. I will probably buy one soon to manage my cables a little better. Nonetheless my system works fine and I would recommend the Silverstone SFX Modular PSU. Great Case!

6 out of 6 people found this review helpful. Did you? Yes No

  • Eric L.
  • 8/27/2012 1:30:44 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorth the high price

Pros: -Very solid construction, only 1 piece on the entire case is plastic which is the top removable vent.
-Everything fits as designed.
-Fits MOST fullsize cards (will fit a HD 6850 or GTX 460)
-Great component placement.
-Single case fan keeps noise down.
-Metal sides look very nice are not made of cheap painted steel like most cases.
- Decent cable management.

Cons: - As with pretty much every case, the instructions could be better and more descriptive.

Other Thoughts: Overall a great mini itx case though the build will be very tight. Make sure you read the description and get a silverstone SFX form factor PSU or any SFX psu because anything else wont fit. Some people may think this is a way for silverstone to get more money out of you but once you start putting components in the case you will realize an ATX psu would never fit.

6 out of 6 people found this review helpful. Did you? Yes No

  • James S.
  • 6/20/2012 6:07:37 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAwesome Case

Pros: This is one beautiful case. The design of this case is perfect. I am using an Antec 620 cooler, this case is silent and all components stay very cool.

Cons: None

Other Thoughts: In this case I have:
ASUS P8Z77-I Deluxe motherboard with an Intel Core i7-3770K, EVGA SuperClocked GTX 680, G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2133, a Corsair SSD, a Seagate Momentus HDD and a SILVERSTONE ST45SF 450W PSU. Cooled only by one intake fan and the Antec 620 cooler (without its included fan). That GTX 680 is a full size (10 inch) video card. This case is fantastic. I have never been happier with a purchase than I am with this case.

13 out of 13 people found this review helpful. Did you? Yes No

  • Paul L.
  • 5/24/2012 8:33:15 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsVery satisfied with purchase

Pros: - compact
- rigid
- elegant design
- well thought out interior
- easy to work with
- effective cooling
- sturdy bottom intake dust filter

Cons: - plastic front io
- plastic foot assembly

Other Thoughts: Overall, the pros outweighth the con by a large margin. If you're in the market for a compact, elegant, and functional mini itx case, you won't be disappointed with this case.

5 out of 6 people found this review helpful. Did you? Yes No

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Silverstone > 
Item#: N82E16811163197
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