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ENERMAX Tomahawk ETK405AST 405W ATX12V V2.2 AirGuard, Speed Guard and Safe Guard Power Supply - Retail

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Manufacturer InfoReturn Policies

Manufacturer Warranty

Beyond any applicable Newegg return policy, this item is warranted independently by the product's Manufacturer. Below is a summary provided for convenience only and may not be accurate or current. Use this link for full details.

  • Manufacturer Limited Warranty period (parts): 3 years
  • Manufacturer Limited Warranty period (labor): 3 years

Manufacturer Contact Info

Return Policies

This item is covered by Newegg.com's Standard Return Policy.

  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • Restocking Fee: Yes
OverviewCustomer ReviewSpecificationsProduct Tour
Chop down your enemies with the 405W Tomahawk from Enermax. This powerful PSU is designed for advanced systems with multi-core processors and powerful video cards. It has dual 12V rails for a balanced output and the power to run 24/7.

The PSU comes with plenty of connectors including 4xSATA and 4xMolex for all of your drives and peripherals. There is also an FDD connector.

Enermax has designed the Tomahawk to run as quietly as possible. It has a patented air inlet for the 12cm fan that reduces turbulence and increases air flow efficiency. This is boosted by the SpeedGuard fan control that runs the fan only as fast as is necessary to keep the PSU& running at its peak efficiency.

Review Summary (read more reviews)

5
newegg
78%
4
newegg
11%
3
0%
2
0%
1
newegg
11%
Product Rating:
Total Reviews: 9

Good Deal

white Reviewed By: jebinc on 11/27/2008
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 day to 1 week
This user purchased this item from Newegg
Pros: Great Value, design, features and brand.
Cons: None as of yet
Other Thoughts: I have always had great luck with this manufacturers PSU's - and I've build many rigs in my day!
3 out of 3 people found this review helpful. Did you? Yes No

No Bad

white Reviewed By: booman on 3/22/2009
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Powerful and Reliable just like any Enermax power supplies. Plenty of length on all connections and 1 PCI-E 6pin connector.
Cons: Unfortunately I needed more 4-pin Molex connections. There are only four on the whole power supply and I had to use adapters because of older hard-ware. Not Enermax's fault because the Tomahawk is made for newer hardware.
Other Thoughts: Plan ahead if you want to upgrade because if you need more than 4 qty 4-pin Molex connectors then you will need adapters. There are plenty of SATA connectors.
1 out of 1 people found this review helpful. Did you? Yes No

Quick Specs (view all30)

ModelETK405AST
TypeATX12V
Maximum Power401 - 450W
Fans1
PFCNo

Review Summary (read all 9 Reviews)

5
newegg
78%
4
newegg
11%
3
0%
2
0%
1
newegg
11%
Product Rating:
Total Reviews: 9

Forget the Rebate

white Reviewed By: on 11/16/2009
Rating + 1
Tech Level Tech Level: high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: Decent Power Supply
Cons: Forget the rebate... you won't get it...
1 out of 7 people found this review helpful. Did you? Yes No

very good psu

white Reviewed By: lfiloti on 9/22/2009
Rating + 5
Tech Level Tech Level: average - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: quiet, reliable, price
This power supply works very well, quiet fan turns up only when needed.
Cons: none
Did you find this review helpful? Yes No

It looks and runs great.

white Reviewed By: Bo on 8/28/2009
Rating + 4
Tech Level Tech Level: average - Ownership: 1 day to 1 week
This user purchased this item from Newegg
Pros: The power supply looks good (the quality is there) and run very quiet. It does not have the latest and greatest features like PFC, and blah, blah, blah... and it is not as heavy as I expected. However, it comes with 3 years warranty. Let see if this thing can withstand the test of time. I am planning to run this in 24X7X365.
Cons: I wish the price can be lower so many people can own this great power supply.
0 out of 1 people found this review helpful. Did you? Yes No
Model
Brand ENERMAX
Model ETK405AST
Series Tomahawk
Spec
Type ATX12V V2.2
Maximum Power 405W
Fans 1
PFC No
Main Connector 20+4Pin
+12V Rails 2
PCI-Express Connector 1 x 6-Pin
SATA Power Connector 4
SLI No
CrossFire No
Modular No
Input Voltage 115/ 230 V
Input Frequency Range 47 - 63 Hz
Input Current 8A @ 115V, 4A @ 230V
Output +3.3V@24A,+5V@20A,+12V1@17A,+12V2@17A,-12V@0.3A,+5VSB@2.5A
MTBF >100,000 Hours
Approvals UL, cUL, TUV, CB, RoHS
Features
Features AirGuard - Patented air-inlet with optimal aero-dynamical design reducing noisy air turbulence's.

SpeedGuard - Intelligent Speed Control Circuit monitor & adjust fan speed for optimal cooling and minimum noise.

SafeGuard - Triple protection circuitry of OVP, OPP & SCP protect PSU and system from damage.

40C ready - Running with full power in industrial environment at 40C.

24/7 ready - High-Quality components and dual 12V rails design to enable non-stop usage with stable current.

MULTI ready - Ready for next-gen MULTI CORE system.

SILENT ready - Ultra silent 12cm fan with intelligent RPM control guarantees cool performance and silent operation.
Manufacturer Warranty
Parts 3 years limited
Labor 3 years limited

Introduction

Chop down your enemies with the 405W Tomahawk from Enermax. This powerful PSU is designed for advanced systems with multi-core processors and powerful video cards. It has dual 12V rails for a balanced output and the power to run 24/7.

The PSU comes with plenty of connectors including 4xSATA and 4xMolex for all of your drives and peripherals. There is also an FDD connector.

Enermax has designed the Tomahawk to run as quietly as possible. It has a patented air inlet for the 12cm fan that reduces turbulence and increases air flow efficiency. This is boosted by the SpeedGuard fan control that runs the fan only as fast as is necessary to keep the PSU& running at its peak efficiency.

Highlights

newegg ATX12V v2.2 Compatible
Compatible with the ATX12V v2.2 standard, the Enermax Tomahawk ETK405AST power supply provides maximum power stability to drive the latest Intel and AMD processors as well as other system components.
newegg 405W Maximum Power
A maximum power of 405W delivers safe, reliable output for mainstream computer systems.
newegg 120mm Cooling Fan with SpeedGuard Technology
The Enermax Tomahawk ETK405AST features a large 120mm fan for increased overall airflow and heat dissipation in the power supply enclosure. SpeedGuard technology allows the cooling fan to operate at low RPM when the power supply is under 50% load for minimized operating noise.
newegg AirGuard Technology
The patented AirGuard air intake system features slightly bended housing around the fan opening, helping reduce the noise caused by the turbulence generated by the cooling fan. .

Photo Gallery

ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail
ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail ENERMAX Tomahawk ETK405AST 405W Power Supply - Retail

Quick Specs

BrandENERMAX
TypeATX12V
Maximum Power401 - 450W
+12V Rails2
Fans1
Input Current8A @ 115V, 4A @ 230V
MTBF>100,000 Hours
PCI-Express Connector1 x 6-Pin
Main Connector20+4Pin
Input Frequency Range47 - 63 Hz
Input Voltage115/ 230 V
ModularNo
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