• All Departments
  • Digital Download
Quick Links
Prize Picker
Send Us a Message
Rebate Center
Rebate Archive
eBay Outlet
Kingston Memory Finder
Corsair Memory Finder
Shop Safely
HACKER SAFE certified sites prevent over 99.9% of hacker crime.
Click to verify BBB accreditation and to see a BBB report.
Testimonial Box
"I would just like to say how pleased I am with the lightning fast shipment of my purchase. I just recieved ..."
— Chris_Q
Read More
Write Review

Nexus NX-4000 400W Real Silent Power Supply 21.7DBA

Nexus NX-4000 400W Real Silent Power Supply 21.7DBA
Actual product may not be exactly as shown.
Customer Photos (0)
Nexus Technology USA
Reg. Price: $99.99  CAD
This Product is Not Available

This item is no longer available. Notify me if this product is available again.
Service Plan:
NCIX Express Exchange
If your product is diagnosed as defective, we will replace it with a brand new one! Learn More
None, I do not want NCIX Express Exchange 1 Year Component Express Exchange - Only $6.99 2 Year Component Express Exchange - Only $17.99 3 Year Component Express Exchange - Only $27.98

Average Rating:

Share this:

This product is not available.

Add to your wish list
E-Mail to a friend
More from Nexus Technology USA

More Nexus Technology USA Power Supplies

Similar products
Print this item
Notify me

Part #: NX-4000

SKU: 11482
Shipping Weight: 5 lbs

May We Also Suggest

Customer Reviews of Nexus Technology USA NX-4000

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Nexus Technology USA NX-4000 reviews.
James B
Experience: 3 Weeks


Very quiet, and does a very good job venting heat.
None so far.
I got this PSU with the Nexus Breeze 400 case. It comes as a built in component of the case, as they used a patented airflow system to keep the electronics inside cool, while also using a lot of sound insulation to keep the PC quite.

So far the PSU has performed excellently. No problems with power delivery, or heat. It helps vent the case extremely well, especially considering how well sealed the case is. It also has a very quiet fan. Definitely worth a look, and in fact, if you're looking for a quiet case take a look and the Nexus Breeze 400, which NCIX also usually has in stock.

Product Videos [ Edit ]

Features [ Edit | History ]

After setting the new standard for quiet 300 Watt power supplies we started to develop a real silent 400 Watt power supply. We set very high standards when it comes to quality, performance, power and silence. The Nexus NX-4000 Real Silent Power Supply is a true 400 Watt power supply and is again setting new standards! The NX-4000 is fitted with a wire grill and a premium quality fan. The NX-4000 produces only 21.7 dB(A) in idle mode!

Specifications [ Edit | History ]

Real silent power supply, only 21.7 dB(A) in idle mode
*High efficiency
*Output over voltage protection
*Short circuit protection on all output
*Reset Table power shut down
*Approved by: TÜV, CSA, UL, NEMKO, FCC, CB & CE
*Internal 80mm fan with wiregrill
*Unique coupling of internal heat sink to the case of the power supply to increase overall heat dissipation area
*100% burn-in under high ambient temperature (50C)
*Vacuum-impregnated transformer
*MTBF: 100K hours at 25oC
*100% Hi-pot tested
*Line input fuse protection
*Active PFC
*Complies with EN61000-3-2
*AC input full range

Remote ON/OFF Control:
The power supply shall accept a logic open collector level which will disable / enable all out put voltage (excluding +5V standby)

Temperature range:
operating 0C~50C
storage -20C~+80C

Temperature coefficient:
0.01% / C

Transient response:
output voltage recovers in less than 1ms max. following a 25% load change

Hold-up time:
17 ms minimum at full load & nominal input voltage

Dielectric withstand:
input / output 1800VAC for 1 second, input to frame ground 1800 for 1 second

 5~95% RH

65% min. 70% typical, at full load

Power factor correction:
> 0.96 at full load

Power good signal:
turn-on delay 100ms to 500ms

Overload protection:
150% max.

Inrush current:
80A cold, 120A warm at 132 VAC

Over voltage protection:
+5V : 6.82V(max.)
+3.3V : 4.5V(max.)

NCIX Forum Messages

Post a New Message  |    Browse NCIX Forums  

Please note that Forums is not a sales or product support board. For sales or specific product related questions, please send message to receive the fastest response.

Messages about Nexus NX-4000 400W Real Silent Power Supply 21.7DBA

Post a New Message  |    All Messages       Browse NCIX Forums

Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: review on NEXUS NX-4000 400W PSU.
Posted by: MG @07/27/04
Comment: review on NEXUS NX-4000 400W PSU.
Posted by: MG @07/27/04
Comment: review on NEXUS NX-4000 400W PSU.
Posted by: MG @07/27/04
Comment: a good review with many pics and specs and a test
Posted by: Hundemoerder @04/26/04
Comment: Hardware Extreme's review with a noise level comparision with other power supplies.
Posted by: Denny @03/13/04
Submit a review link   |   Latest 30 reviews

Product Warranty

First 30 days limited warranty through The remainder of the one year warranty is provided directly by the manufacturer.

Sales Policy

All pricing subject to change. For all prices, products and offers, reserves the right to make adjustments due to changing market conditions, product discontinuation, manufacturer price changes, errors in advertisements and other extenuating circumstances. Promotional offers from are subject to availability and are available only while supplies last. No rain checks will be issued on promotional items and offers.

While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages (excluding laptops and notebooks), from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

NON-DEFECTIVE merchandise returns may be accepted on some items ONLY within 15 days of the Invoice date, at's discretion. Laptops and Notebooks can be returned within SEVEN (7) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns.

GOVERNMENT & BUSINESS Laptop and Notebook purchases made with government or business POs can be returned typically within fourteen (14) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns. Please check with your B2B sales representative for specific terms and details.

All NON-DEFECTIVE returns are subject to a 15% restocking fee. No refunds will be issued for blank media, digital camera (and accessories), opened software, printers, printer supplies, paper, projectors (and accessories), appliances, handhelds, PDAs, notebook computers, special order computers and special order items.

Defective software, video games or DVDs will be replaced by the SAME title and format ONLY (and subject to current availability) within 30 days of the Invoice date. Software, Drones, video games and DVDs may be returned within 30 days only if the item is UNOPENED (with shrink wrap still intact) at the sole discretion of does NOT apply a surcharge to credit card orders. Please read our RMA & warranty policy and terms & conditions for more information. If you have any questions regarding our sales and warranty policies, please send us a message -- we'll be glad to answer any of your questions.

Icon Canadian CANADA Icon United States USA
Connect: NCIX Youtube icon NCIX Facebook icon NCIX Instagram icon
Get Deal Alerts in your Inbox!
Don't miss out on the latest coupons and rewards.
Please read our
privacy policy for details.
NCIX Sale banner
Contentname:NCIX_Weekly_Special_Side Contentname:biz_PSU_top
Your Order Company Info Memberships Services Hotlinks
Order Status
RMAs (Merchandise returns)
Contact Us / Store Locator
Terms & Conditions
Privacy Policy
BBB Accredited Business Profile
Branding & Logos
NCIX Rewards
Premier Partner Reseller Program
VIP Memberships
Advantage Membership
NCIX Affiliate Program
Super Shipping Saver Club
Express Coverage
Express RMA
Express Exchange and Care Coverage
Gift Cards & Balance Checker
Same-Day Delivery
Retail Financing
NCIX Newsletters
NCIX Forums
Folding @ Home Team
The Banner Vault
International Sites:  Canada
Copyright© 2017 Computer Inc. All rights reserved. / Server ID: 58  968 ms
Page last updated: 07/24/2017 12:31:28
Back To Top