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  • No deductibles or added costs. Parts, labor and shipping included.
  • Power surge covered from day one. Other breakdowns covered after the manufacturer's warranty expires.
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  • File a claim online or by phone 24/7. If we can't repair it, we'll replace it or reimburse the purchase price with an Amazon e-gift card.
  • Plans are only valid for new or certified refurbished products purchased in the last 30 days with no pre-existing damage. Protection plan documents will be delivered via email within 24 hours of purchase.

3 Year Office Equipment Protection Plan

from Asurion, LLC
  • No deductibles or added costs. Parts, labor and shipping included.
  • Power surge covered from day one. Other breakdowns covered after the manufacturer's warranty expires.
  • Includes 24/7 tech support - setup, connectivity issues, troubleshooting and much more.
  • File a claim online or by phone 24/7. If we can't repair it, we'll replace it or reimburse the purchase price with an Amazon e-gift card.
  • Plans are only valid for new or certified refurbished products purchased in the last 30 days with no pre-existing damage. Protection plan documents will be delivered via email within 24 hours of purchase.

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MasterWatt 650 Watt Semifanless Modular Power Supply, 80 PLUS Bronze Certified Power Supply for Computers

4.3 out of 5 stars 292 ratings

Was: $84.99
Price: $79.99 & FREE Shipping. Details & FREE Returns
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650W
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  • 650W semi-modular ATX Power supply
  • Semi-fanless up till 15% load
  • 80 plus Bronze certified
  • Temperature controlled 120mm fan with dustproof LDB bearing
  • 5 years
  • Dc-to-dc circuit design for stable voltage output
  • Thicker 16AWG PCIe cables to support the latest graphics cards
New (10) from $92.49 + FREE Shipping

Frequently bought together

  • MasterWatt 650 Watt Semifanless Modular Power Supply, 80 PLUS Bronze Certified Power Supply for Computers
  • +
  • AMD Ryzen 5 3600 6-Core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler
  • +
  • Seagate BarraCuda 2TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache 3.5-Inch – Frustration Free Packaging (ST2000DM008)
Total price: $306.97
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Size: 650W

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From the manufacturer

MasterWatt 550 MasterWatt 650 MasterWatt 750
Continuous Combined Output 550W 650W 750W
+12V Output 550W 650W 750W
SATA Connectors 6 9 9
Peripheral Connectors 2 3 3
PCI-e 6+2 Pin Connectors 2 4 4
Noise level @ 50%Load 13 dBA 14 dBA 16 dBA
5 Year Warranty

Compare with similar items


MasterWatt 650 Watt Semifanless Modular Power Supply, 80 PLUS Bronze Certified Power Supply for Computers
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Seasonic Focus GX-650, 650W 80+ Gold, Full-Modular, Fan Control in Fanless, Silent, and Cooling Mode, 10 Year Warranty, Perfect Power Supply for Gaming and Various Application, SSR-650FX.
Cooler Master MWE 600 Bronze, 80+ Bronze Certified 600W Power Supply, 3 Year Warranty
EVGA 650 B5, 80 Plus Bronze 650W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0650-V1
Customer Rating 4.3 out of 5 stars (292) 4.5 out of 5 stars (1043) 4.6 out of 5 stars (5641) 3.6 out of 5 stars (412) 4.1 out of 5 stars (44)
Price $79.99 $54.99 $109.99 $79.95 $145.00
Sold By Amazon.com Amazon.com Amazon.com Amazon.com TheSupplierHub
Item Dimensions 5.51 x 5.90 x 3.38 inches 8.90 x 4.00 x 7.00 inches 5.50 x 5.90 x 3.30 inches 5.51 x 5.90 x 3.38 inches 5.91 x 5.91 x 3.35 inches
Item Weight 0.01 ounces 2.20 lbs 3.31 lbs 3.44 lbs

Product description

Size:650W

The Cooler Master Master Watt Bronze 650W is a modular 80 Plus Bronze certified PSU with a semi-fanless mode. Under 15% load, The masterwork Bronze fan remains idle, offering zero dBA. When demand for power increases, a gradual fan curve provides measured cooling with little to no noise at any output level. Dc-to-dc topology is employed to keep the voltage stable in all conditions. For increased performance, The masterwork Bronze 650 Watt is equipped with 16 AWG PCIe cables, which reduce resistance thereby increasing efficiency.


Product information

Size:650W

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer reviews

4.3 out of 5 stars
4.3 out of 5
292 customer ratings
How does Amazon calculate star ratings?
Reviewed in the United States on November 7, 2018
Size: 650WVerified Purchase
20 people found this helpful
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Reviewed in the United States on April 19, 2018
Size: 650WVerified Purchase
27 people found this helpful
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Reviewed in the United States on July 29, 2018
Size: 550WVerified Purchase
12 people found this helpful
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Reviewed in the United States on December 2, 2018
Size: 550WVerified Purchase
5 people found this helpful
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Reviewed in the United States on March 16, 2018
Size: 750WVerified Purchase
11 people found this helpful
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Reviewed in the United States on August 2, 2019
Size: 550WVerified Purchase
One person found this helpful
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Reviewed in the United States on December 6, 2018
Size: 650WVerified Purchase
2 people found this helpful
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Reviewed in the United States on May 14, 2018
Size: 550WVerified Purchase
5 people found this helpful
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Top international reviews

Carlos C.
1.0 out of 5 stars Ruidos extraños!
Reviewed in Mexico on May 22, 2018
Size: 550WVerified Purchase
18 people found this helpful
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Miguel
5.0 out of 5 stars Muy buen psu semi modular para una pc gama media
Reviewed in Mexico on September 13, 2019
Size: 750WVerified Purchase
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2 people found this helpful
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Muk
4.0 out of 5 stars great psu for price
Reviewed in Canada on February 13, 2019
Size: 550WVerified Purchase
One person found this helpful
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unclerob
5.0 out of 5 stars Works, and easy to install with semi modular design
Reviewed in Canada on June 11, 2019
Size: 550WVerified Purchase
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gk
5.0 out of 5 stars Great price for a silent psu
Reviewed in Canada on August 2, 2019
Size: 550WVerified Purchase
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iceman
5.0 out of 5 stars Easy to Install
Reviewed in Canada on August 25, 2019
Size: 550WVerified Purchase
2 people found this helpful
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Aldair Díaz Rodríguez
4.0 out of 5 stars Buen vendedor
Reviewed in Mexico on October 14, 2018
Size: 550WVerified Purchase
3 people found this helpful
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K. G.
2.0 out of 5 stars Great value, but incredibly noisy
Reviewed in Canada on April 9, 2020
Size: 550WVerified Purchase
One person found this helpful
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Rudy
3.0 out of 5 stars works great but rigid cable and bad coil whine
Reviewed in Canada on April 4, 2020
Size: 750WVerified Purchase
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Carlos
4.0 out of 5 stars Buena calidad
Reviewed in Mexico on May 12, 2018
Size: 550WVerified Purchase
2 people found this helpful
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Alberto Estrella Alvarez
4.0 out of 5 stars Solicite el reembolso
Reviewed in Mexico on September 13, 2019
Size: 750WVerified Purchase
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Amazon Customer
5.0 out of 5 stars Quieter running than the 5 year old lower power, power supply. Nice features well made. good cables
Reviewed in Canada on January 1, 2019
Size: 650WVerified Purchase
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Carlo
1.0 out of 5 stars Bad product and bad customer service
Reviewed in Canada on October 9, 2018
Size: 550WVerified Purchase
4 people found this helpful
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Mike From Canada
5.0 out of 5 stars Completely Silent
Reviewed in Canada on February 22, 2019
Size: 550WVerified Purchase
One person found this helpful
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Joli
1.0 out of 5 stars $116 for the 750w 1 day, $99 the next (not due to a sale). Both supplied directly from amazon.
Reviewed in Canada on April 28, 2020
Size: 750WVerified Purchase
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