Best 300 watt power supplies

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We have created a list of Best 300 watt power supplies of 2017.

Best 300 watt power supplies

SaleBestseller No. 1
StarTech.com 300 Watt ATX Replacement Computer PC Power Supply ATX 300 ATXPOWER300
  • High performance components and connectors are designed for extra long life and provide maximum system performance
  • 1 - ATX 12V P4 Power (4 pin; v 2.x) Male, 1 - ATX AUX Power (6 pin; v 1.x) Female, 1 - ATX Power (20 pin; v 1.x) Male, 1 - SATA Power (15 pin) Receptacle, 2 - SP4 (4 pin; Small Drive Power) Female, 6 - LP4 (4 pin; Molex Large Drive Power) Female
  • The temperature controlled smart fan cools your entire system while the EMI/RFI power filter reduces noise/ripple
Bestseller No. 2
Tanbaby 5V 60A DC Universal Regulated Switching Power Supply 300w for CCTV, Radio, Computer Project
  • General protection: each output has independent PTC fuse and LED indicator, when problem occurs, only affect the independent output, other outputs still working
  • Circuit short protection: when short condition occurs, independent PTC fuse will open the circuit,when condition removed, PTC fuse will automatically back to close
  • High voltage protection: when high voltage occurs, the surge protection will be hit through to protect the connected device
Bestseller No. 3
Mean Well SP-320-12 Power Supply, Single Output, 12 Volt, 25 Amp, 300 Watt, 8.5" L x 4.5" W x 2.0" H, Silver
  • Product type - ac to dc power supply
  • Efficiency ( percent ) - 86
  • Type - auto switching
Bestseller No. 5
[UL Listed] Pwr+ Yamaha-AC-Adapter-Charger Extra Long for Yamaha PA-1 PA-1B PA-4 PA-130 PA-150 PA-150A EP-A3 KP-A3 Dgx Djx Dsr Dx Np P Pc Pcr Pcs PsPss Ydp Ynp Ypp Ypr Ypt Psr Series Electronic Digital Piano Midi Keyboard Power Supply Cord: Cp33 202 203 205 220 230 300 305 500 505 520 530 620 630 ; Djx-405 ; Dsr-1000 2000 500 ; Dx27 ; Ez-20 250i 30 ag eg j14 j24 tp ; Np-30 ; P-140s 60 65 70s 85 85s ; P140 P80 ; Pc-100 1000 Pc-50 ; Pcr-800 ; Pcs-30 500 ; Ps-200 300 400 Pss- Series and others
  • PWR+ CHARGER - Introducing Improved Replacement for OEM Original Yamaha Charger at Half the Price. PWR+ Charger carries REAL Safety Certification from US based Testing Lab (Underwriters Laboratories - UL). Only PWR+ Chargers have Total Cord Length Extended to 6.5 Ft (Competitor's Products are Only 3-4 Ft Long) . This is The Real Deal Charger that is Head Above any Private Label Generic Equivalent or " Genuine " Yamaha Charger from a Dropshipper with no US warehouse
  • POWER SPECS : Input Voltage Range: AC 100V - 240V / Output Max: 12V 2A / Steel-Reinforced Tip for Extended Usability / Made in Taiwan
  • SAFETY / UL LISTED : Approved for Sale in the US and Canada by Underwriters Laboratories (UL). UL number assigned to this Pwr+ product is unique and could be verified on UL website. UL LLC is an American worldwide safety consulting and certification company approved to perform safety testing by the US federal agency Occupational Safety and Health Administration (OSHA)
Bestseller No. 7
SilverStone Technology 300W SFX Form Factor 80 PLUS BRONZE Power Supply with +12V single rail, Active PFC (ST30SF)
  • Support standard SFX form factor and ATX via included bracket
  • 300W continuous power output at 50℃ operating temperature rated for 24/7 operation
  • 80 PLUS Bronze level efficiency (82%~85% efficiency at 20%~100% loading)
Bestseller No. 8
300W POWER SUPPLY 5DDV0 05DDV0 FOR Dell INSPIRON 620/660 VOSTRO 260 H300NM-00
  • Part Number: 5DDV0 , 05DDV0, CN-05DDV0
  • Model Number :H300NM-00
  • Power Supply For DeLL INSPIRON 620/660
Bestseller No. 9
400W 400 Watt ATX Power Supply Replacement for HP Bestec ATX-250-12E, ATX-300-12E, ATX-300-12E-D by Replace Power
  • Replaces Several Older Legacy Power Supply; Upgrade to 400 Watts
  • Built-in 20+4 Pin Adapter: Supports 24 and 20 Pin Power Supplies
  • Reduced Depth for Increased Compatibility; 5.9" Height x 3.4" Weidth x 4" Depth
Bestseller No. 10
SHARK TECHNOLOGY ATX-500 SATA4 500-Watt 80mm Fan ATX 12V V2.0 4-SATA 24pin PC Power Supply Unit for Desktop Computer ATX Case/ PS3 Mini Tower Chassis
  • 500W easy-to-install switching PSU box for mini tower ATX case PC, micro cube portable computers, PS3 mini tower systems, and most name brand standard desktop form factor systems. Compact unit is much easier to install.
  • 1x 24pin (20+4) Main Power Connector, 1x P4 2x2 12V Mainboard Power Connector
  • 4x SATA Power Connector - on 3 separate cable lines

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