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Rosewill FORTRESS-550 550W Continuous @50°C, Intel Haswell Ready, 80 PLUS PLATINUM, ATX12V v2.31 & EPS12V v2.92, SLI/CrossFire Ready, Active PFC Power Supply

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ATX12V v2.31 / EPS12V v2.92
100-240V
80 PLUS Platinum Certified
Efficiency up to 94%
135mm Silent Fan
7 years warranty

The Rosewill FORTRESS series is a premium 80 PLUS PLATINUM certified power supply that delivers unprecedented performance, uncompromised features with unbeatable efficiency up to 94%. FORTRESS's black coated casing and granite touch makes it a truly regal power supply like no others. It features active PFC with auto AC-input voltage adjustment (100 - 240V), mesh sleeves on all cables for easier cable routing and better ventilation, and one 135mm fan with auto fan speed control for efficient, silent cooling. An array of safety & EMI approvals including UL, FCC, CE and RoHS ensures outstanding reliability, durability and eco-friendliness.

550W Power Output with Single Strong 12V Rail The Rosewill FORTRESS-550 power supply delivers rated 550W of safe, reliable output for your computer systems. One single strong +12V rail with 2x 6+2-Pin PCIe connectors can juice up your high-end CPU and even multiple graphics cards.
80 PLUS Platinum Certified The 80 PLUS Platinum certified power supply provides ultra-high power efficiency of at least 89%and can even peak at 94%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
Comprehensive Protection Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components.
NVIDIA SLI Ready & AMD CrossFireX Certified The Rosewill FORTRESS-550 is AMD CrossFireX and NVIDIA SLI Ready and comes with 2x 6+2 Pin PCI-E connectors enabling you to build a high performance multi-GPU gaming system.
Silent Cooling One silent 135mm fan with auto fan speed control delivers excellent heat dissipation at low noise, keeping your PSU running at peak performance.

Learn more about the Rosewill FORTRESS-550

Model

Brand: Rosewill

Model: FORTRESS-550

Series: FORTRESS Series

Spec

Type: ATX12V v2.31/ EPS12V v2.92

Maximum Power: Continuous 550W@50degrees celsius

Fans: 1 x Silent 135mm Fan

PFC: Active

Main Connector: 20+4Pin

+12V Rails: Single

PCI-Express Connector: 2 x 6+2-Pin

SATA Power Connector: 6

SLI: SLI Ready

CrossFire: CrossFire Ready

Modular: No

Power Good Signal: 100-500ms

Hold-up Time: > 16ms

Efficiency: > 89%, Up to 94%

Energy-Efficient: 80 PLUS PLATINUM Certified

Over Voltage Protection: +3.3V, +5V, +12V

Input Voltage: 100 - 240 V

Input Frequency Range: 47 - 63 Hz

Input Current: 10A

Output: +3.3V@20A, +5V@20A, +12V@45.5A, -12V@0.5A, +5VSB@2.5A

MTBF: 100k hours at 25 degrees celsius, max. load, nominal input

Approvals: cTUVus, FCC, CE, ROHS

Dimensions: 5.91" x 3.39" x 6.50" ( W x H x D)

Features

Connectors: 1 x 20+4-Pin Main Connector

1 x 4+4-Pin ATX12V/EPS12V Connector

2 x 6+2-Pin PCI-E Connector

5 x 4-Pin Peripheral Connector

6 x 5-Pin SATA Connector

1 x 4-Pin Floppy Connector

Features: 80 PLUS Platinum Certified

Intel Haswell CPU Ready

Continuous 550W@50 degree celsius

Single strong 12V rail - idea for Gaming system

SLI & CrossFire Ready - 2 x 6 + 2pin Connector

1 x Silent 135mm Fan with Auto Fan Speed Control for better silence

Active - PFC with auto AC-input voltage adjustment (100 - 240V)

Mesh sleeving on all cables for easier cable routing and better ventilation

Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components

Safety & EMI Approval: UL, FCC, CE, ROHS

Manufacturer Warranty

Parts: 7 years limited

Labor: 7 years limited

Quick Info

Warranty

Limited Warranty period (parts): 7 years
Limited Warranty period (labor): 7 years

Manufacturer Contact Info

Manufacturer Product Page|
Website: http://www.rosewill.com|
Support Phone: 1-800-575-9885
Support Email: techsupport@rosewill.com|
Support Website|
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Customer Reviews of the Rosewill FORTRESS-550

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Filter Results Last 2 Weeks (1) Last 6 Months (13) All Reviews (20) 90% (18) 5% (1) 0% (0) 0% (0) 5% (1) Verified Owners Video Reviews Mfr. Responses keyword Go page SubmitTopPaginationForm of 2 previousTopPaginationForm\| nextTopPaginationForm
Scottie 5/14/2013 12:02:28 PM Tech Level: 4/5 Ownership: 4/5 Verified Owner	Rating: 5/5What a Monster Pros: Awesome power supply. Plenty of power, plenty of connections, whisper quiet. Cons: None Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 4/30/2013 7:00:33 AM Tech Level: 3/5 Ownership: 4/5 Verified Owner	Rating: 5/5Reliable Pros: The Power supply is still running well after my purchase in 2012. I do not use a lot of power hungry equipment so I cannot put the unit through its paces, but it has done the job and that is all I can ask. Cons: None so far. Did you find this review helpful? Thanks for the valuable feedback you provided!
I am bad at computer 4/24/2013 7:40:14 PM Tech Level: 3/5 Ownership: 4/5 Verified Owner	Rating: 5/5How did this get here Pros: Definitely quiet. It's the most solid looking and feeling power supplies I've bought. Doing good going on 5 months... Cons: Hope you got cable ties for all them extra wires. Other Thoughts: Looks pretty nice in the case with the rest of the parts! Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 4/19/2013 4:47:09 PM Tech Level: 3/5 Ownership: 1/5 Verified Owner	Rating: 5/5Awesome Pros: Sturdy, efficient, INSANELY quiet, plenty of connectors. Cons: Lots of wires, tight fight but no big deal. Other Thoughts: NZXT Apollo case Asus P5Q mother board Intel E86 C2D CPU GTX 550TI Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 3/22/2013 3:38:57 PM Tech Level: 4/5 Ownership: 4/5 Verified Owner	Rating: 4/5 Pros: plenty of power and very quiet Cons: crapped out on me well see of the warranty goes Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 2/4/2013 10:54:51 AM Tech Level: 4/5 Ownership: 4/5 Verified Owner	Rating: 5/5Bought with power savings in mind. Pros: Silent, efficient, great build quality, braided cords, looks nice too! Powers my 4 drives, Core i5, and GTX 660Ti very nicely. My PC idles at about 85 watts! At load during a benchmark I get around 180-200 watts from the wall! Cons: Bought 2, both work, no issues! Other Thoughts: I'm using a power meter to monitor my energy usage now. Wish I got it before buying this power supply so I could see the difference! Had an ordinary non-80PLUS 460W PSU before upgrading to this one. This is my first Rosewill product and I'm impressed! I'd buy again! 2 out of 2 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
N/A 1/7/2013 8:41:13 AM Tech Level: 3/5 Ownership: 4/5 Verified Owner	Rating: 5/5Great power supply at a reasonable price Pros: -Great price. -Platinum certified. -Single rail. -Long cables, which is long enough to reach to the top of my ATX mid tower (Antec 600). -Has more than enough cables to power up my gaming PC. Cons: Cables were a bit stiff at first, but I was still able to do cable management with it. Other Thoughts: This is my first Rosewill product and I believe this product has reliability at an affordable price. 1 out of 1 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
Josh G 12/27/2012 8:42:32 AM Tech Level: 5/5 Ownership: 4/5 Verified Owner	Rating: 5/5Excellent Pros: These things are awesome! Excellent power output. Very little (if any) heat output. Amazing 7 year warranty! The entire thing feels very well put together. Cons: n/a Other Thoughts: i could be happier if it was made in the USA. Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 12/23/2012 9:01:38 AM Tech Level: 3/5 Ownership: 3/5 Verified Owner	Rating: 1/5Bad experience Pros: Very quiet, runs cool. Cons: Worked fine for 2 days and then my computer wouldn't post from a cold start. I was about to replace the motherboard because I kept getting memory errors on start up. I would have to turn off the supply and turn it back on and then it would boot. As a last effort I tried a cheap Antec 400W supply and the problems all disappeared. I am now 2 days past 30 days and new egg won't accept an RMA. I will have to try Rosewill's Warranty process, but it might not be worth the shipping since I am in Canada and I'd have to send it to Cali. Other Thoughts: I really wish this would've worked out, however I do not know if I was just unlucky and there is a bad component, or if it is due to the Platinum efficiency design of this unit. Thought I'd post this for anybody else having cold boot issues. Manufacturer Response: Dear Valued Customer, We do apologize for this unexpected inconvenience with our product.Please kindly contact Rosewill support team either via phone at 800-575-9885 or email at rma@rosewill.com so we may assist you.and are eager to assist you in any possible way. We look forward to hearing from you soon. Thank you Rosewill Customer Care Did you find this review helpful? Thanks for the valuable feedback you provided!
Ryan L 12/4/2012 8:05:35 AM Tech Level: 5/5 Ownership: 3/5 Verified Owner	Rating: 5/5Best PSU I've Ever Bought Pros: I bought this on shell shocker for a great price, and I will never go back to any other type of PSU. 80 Plus Platinum makes it extremely quiet and it hardly ever puts out warm air. Cons: I wish it had two more SATA connections instead of 4 molex power connections. Other Thoughts: This makes any other computer of mine sound like a jet engine because it is so quiet. (I'm running 55W Ivy Core i3, as a file server.) Did you find this review helpful? Thanks for the valuable feedback you provided!
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