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Scythe USA > 
Item#: 9SIA4CP1GF9771

Scythe SCKTN-4000 92mm Katana 4 CPU Cooler

  • 300-2500 RPM (regulated via PWM)
  • 6.7-55.55 CFM
  • Nickel-plated Copper (Base Plate)
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Well known for its' reliability and its tilted fin structure Katana 4, just like the Japanese sword, looks back on a long tradition. The 4th generation stands out with its new, modern design combining key features of previous versions with design and efficiency improvements. The low height as well as the structure of the fins and the use of three heatpipes are adopted from its' predecessors. In addition, the new design lays the foundation for higher cooling performance by providing larger cooling surface and the possibility to mount a second fan. The Katana 4 is equipped with a 92 mm Slip Stream fan operated by the PWM signal of the mainboard, circulating at 300 to 2500 rpm. This combination enables virtually silent mode as well as overclocking, by providing sufficient cooling resources for almost all environments. The Katana 4 is compatible with all current sockets.

  • newegg Improved Performance Higher cooling performance is one of the characteristics of 4th generation Katana CPU cooler. The combination of 3 heatpipes, large fins and a PWM-controlled Slip Stream 92 mm fan ensures high-scale heat dissipation. A slightly angled fin structure, allows the airstream to hit the surface directly. Overall surface of the heatsink has been increased.
  • newegg Compatibility As it is common practice for all Scythe products, Katana 4 provides maximum compatibility. All current sockets are supported. Furthermore, a new generation one-touch clip system is launched with Katana 4 excelling in user friendliness and durability.
  • newegg New Look To be released in a completely new design, Katana 4 provides a new, modern look. The fan is situated right-angled to the motherboard and fins are tilted downward. Heatsink and Heatpipes are completely redesigned. Optical enhancements go hand in hand with practical improvements. Better cooling performance is one of them.
  • newegg Compact Design The bias of the new design originates in one simple question. How to build a new, modern looking Katana-style CPU cooler, without sacrificing the compact dimensions of its predecessor? Katana 4 transports this idea into reality. The measurements are very similar to Katana 3, allowing, as before, the use in limited space environments.

Learn more about the Scythe USA SCKTN-4000

Model

Brand
Scythe
Model
SCKTN-4000

Spec

Type
Fan & Heatsinks
Fan Size
92mm
Compatibility
Intel: Socket LGA 2011 / 1366 / 1156 / 1155 / 775

AMD: Socket FM1 / AM3+ / AM2+ / AM3 / AM2 / 940 / 939 / 754
RPM
300-2500 RPM (regulated via PWM)
Air Flow
6.7-55.55 CFM
Noise Level
7.2-31.07 dBA
Power Connector
4 Pin
Color
Black
Heatsink Material
Nickel-plated Copper (Base Plate)

Physical Spec

Fan Dimensions
92 x 92 x 25 mm
Weight
480 g / 16.93 oz (including fan)

Features

Features
Improved Performance
Higher cooling performance is one of the characteristics of 4th generation Katana CPU cooler. The combination of 3 heatpipes, large fins and a PWM-controlled Slip Stream 92 mm fan ensures high-scale heat dissipation. A slightly angled fin structure, allows the airstream to hit the surface directly. Overall surface of the heatsink has been increased.

Compatibility
As it is common practice for all Scythe products, Katana 4 provides maximum compatibility. All current sockets are supported. Furthermore, a new generation one-touch clip system is launched with Katana 4 excelling in user friendliness and durability.

New Look
To be released in a completely new design, Katana 4 provides a new, modern look. The fan is situated right-angled to the motherboard and fins are tilted downward. Heatsink and Heatpipes are completely redesigned. Optical enhancements go hand in hand with practical improvements. Better cooling performance is one of them.

Compact Design
The bias of the new design originates in one simple question: how to build a new, modern looking Katana-style CPU cooler, without sacrificing the compact dimensions of its predecessor. Katana 4 transports this idea into reality. The measurements are very similar to Katana 3, allowing, as before, the use in limited space environments.

Package Contents

Package Contents
2 x Metal Assembly Clip (Intel)
2 x Metal Assembly Clip (AMD / 2011)
2 x 2011 Retention Brackets
4 x Retention Bracket Screws
Thermal Grease
Installation Guide

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the Scythe USA SCKTN-4000

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  • Zaphod B.
  • 11/10/2012 11:33:18 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwesome a usual

Pros: Effective and cool looking.

Cons: It needs a lot of space. Your mother board might get mad about the low rpm's the fan needs to stay cool.

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

  • Michael P.
  • 10/15/2012 6:40:45 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsread the whole review

Pros: Very powerful for a 92mm.

Cons: The idiot designer

Other Thoughts: Let's start with the pros. The heatsink is very good for a 92mm and keeps my 3570k under 40c idling. The fan can be adjusted to pull or push air through the fins. Don't be fooled by the pictures, the base plate isn't steel. It is coated copper.

CONS: DESIGN!!!!
This has to be the stupidest design I have ever worked on. Took 2 hours to install because the plastic clips are very hard to get to clip fully. Not only that, but the heatsink is wide enough to cover half the clip, making it VERY hard to press down. It was very unpleasant and if your not careful, you may snap the board. I think a much better design would have been metal screws coming through the back instead of plastic clips

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

  • Forrest M.
  • 6/26/2012 5:43:04 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsBrackets are terrible.

Pros: Copper heat pipes and fan placement, so it blows heat upwards- great with cases that have top exhaust.

Cons: Where do I start?

Base material:
While it has copper heat pipes, the base is either aluminum or steel plated, not copper. I think this is a serious drawback since it's the main part to conduct heat off of the CPU.

Brackets:
Worse brackets I have ever seen. It came with different clips for the different sockets, but the LGA1155 is terrible and uses PLASTIC clips to hold onto the back of the motherboard. It is not fastened to the motherboard with screws. The clips go maybe 1-2mm past the other side of the board and it doesn't look like it catches much. I am not very confident in the long term durability of these- not only is there a chance for them to come loose, but getting it on was a pain, and there isn't THAT much force, compared to other syncs I have used.

Other Thoughts: I have not been able to actually test this heat sync, so the above review is my professional opinion based on inspecting and installing the product. It took me at least 30 minutes to get this installed, because the clips would not reach through the motherboard, and I was worried about breaking the motherboard by having to physically push on clips, rather use screws that are accustomed in almost EVERY other heat sync. The LGA2011 socket brackets would have been fine. My opinion? Go buy a Zalman.

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

  • Todd L.
  • 6/10/2012 7:29:55 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsWho needs 120mm?

Pros: Keeps a Xeon E5 2665 (2.4GHz) well under 60C even under full load. It isn't huge and really only interferes with RAM slots on an X79 board when the fan is attached.

I don't much like the push-pin mounts for the "lesser" Intel CPUs but the LGA2011 socket gets its own mounting with this cooler that screws directly into the stock backplate on the motherboard. It feels more solid that way.

Cons: The fan is not a PWM type. Instead, it's a standard 3-pin. Not a problem, but who doesn't have a motherboard with a PWM fan header for the CPU anymore? And, since most PWM fans can still run from a 3-pin header, there wasn't any reason to NOT include a PWM fan (other than cost).

That said, running the fan at full-speed, the fan is a slight bit noisy.

Other Thoughts: One of the easier CPU coolers I've installed and used. It's compact, relatively quiet, and effective.

It's not clearly evident in the pictures, but the fins in the cooler direct the air down towards the motherboard - presumably to help cool some VRMs or other surface-mount components. The fan can be mounted to the other side so the air is directed more upwards, should you want to do that. Not sure it'll be much benefit that way or if a second fan is added in push-pull.

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

  • Dana J.
  • 5/26/2012 6:37:06 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPERFECTLY AWESOME 92mm cooler!

Pros: FANTASTIC! Purchased this for my new Ivy Bridge Z77 Sabertooth build, since I was concerned that some of the larger 120mm heatsink / fans might possibly be a "tight" fit with the Sabertooth's thermal armor.

This unit fits in like a dream, and keeps my CPU at 30-31 celcius under no load. Refitted the Sythe fan, with the ARCTIC COOLING AF9 PWM 92mm Case Fan, as the Sythe fan wanted to start up at 300 RPM...which is a bit low for my tastes. Haven't gamed yet, with my new rig, but I'm sure it will work perfectly.

Cons: NONE, except the low speed on the stock fan I replaced ( and that was my choice ). I've used Sythe coolers before and this one is better than any previous ones I've used.

Other Thoughts: System:

Z77 Sabertooth
i5 3570K Ivy bridge
eVGA 560 ti GTX 1 gig
Corsair Vengeance 8 gig DDR3 1866
Plextor M3 256 GB SSD
Seagate 500 GB Mechanical drive ( storage )
Corsair HX-650 PSU
Cooler Master CM 690-2 Advanced case
Win 7 Pro retail

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

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Home > 
Computer Hardware > 
Fans & PC Cooling > 
CPU Fans & Heatsinks > 
Scythe USA > 
Item#: 9SIA4CP1GF9771
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