Skip to: |

Newegg.com - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message.

Newegg.com - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

  • Wish List
  • Feedback
  • Help
Search all
Search

Featured Categories

Shop Power Supplies

By Color
White
Other Options
120mm Fan
140mm Fan
1u
500w
550w
750w
800w
Atx
Corsair

300w Computer Power Supply


StarTech ATXPOWER300 300W ATX Power Supply, ATX 115 / 230 V 50/60 Hz +3.3V@28A, +5V@30A, +12V@15A, -5VSB@0.3A...
  • $54.99
  • $44 .09
  • Free Shipping

StarTech ATXPOWER300 300W ATX Power Supply
  • $54.99
  • $44 .09
  • StarTech ATXPOWER300 300W ATX Power Supply, ATX 115 / 230 V 50/60 Hz +3.3V@28A, +5V@30A, +12V@15A, -5VSB@0.3A, -12V@0.8A, +5VSB@2A...
    Cisco 4948 Series 300W DC Power Supply, PWR-C49-300DC...
    • $304 .98
    • Free Shipping

    Cisco 4948 Series 300W DC Power Supply, PWR-C49-300DC
  • $304 .98
  • Cisco 4948 Series 300W DC Power Supply, PWR-C49-300DC...
    Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300w Replace Power Supply...
    • $68.95
    • $54 .67
    • Free Shipping

    Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300w Replace Power Supply
  • $68.95
  • $54 .67
  • Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300w Replace Power Supply...
    New 300W ATX POWER SUPPLY for Gateway LX6200 LX6810 LX6820 S-5000D...
    • $49.89
    • $37 .68
    • Free Shipping

    New 300W ATX POWER SUPPLY for Gateway LX6200 LX6810 LX6820 S-5000D
  • $49.89
  • $37 .68
  • New 300W ATX POWER SUPPLY for Gateway LX6200 LX6810 LX6820 S-5000D...
    New 300W TC HP 504965-001 447402-001 447585-001 409815-003 Power Supply Replac 250W...
    • $45.65
    • $40 .07
    • Free Shipping

    New 300W TC HP 504965-001 447402-001 447585-001 409815-003 Power Supply Replac 250W
  • $45.65
  • $40 .07
  • New 300W TC HP 504965-001 447402-001 447585-001 409815-003 Power Supply Replac 250W...
    300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan...
    • $36.89
    • $27 .17
    • Free Shipping

    300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan
  • $36.89
  • $27 .17
  • 300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan...
    Sparkle Spi300T8Hnb-B204 300W Tfx12V Power Supply,...
    • $88 .22
    • Free Shipping

    Sparkle Spi300T8Hnb-B204 300W Tfx12V Power Supply
  • $88 .22
  • Sparkle Spi300T8Hnb-B204 300W Tfx12V Power Supply,...
    New 300W TFX SFF Power Supply for HP s5310y s5118f s5310f s5113w s5503w S5114y S5304y...
    • $44.77
    • $38 .48
    • Free Shipping

    New 300W TFX SFF Power Supply for HP s5310y s5118f s5310f s5113w s5503w S5114y S5304y
  • $44.77
  • $38 .48
  • New 300W TFX SFF Power Supply for HP s5310y s5118f s5310f s5113w s5503w S5114y S5304y...
    New for BESTEC MODEL TFX 0250D5W N-ew 300W 1 Fan Power Supply Replace...
    • $44.97
    • $34 .68
    • Free Shipping

    New for BESTEC MODEL TFX 0250D5W N-ew 300W 1 Fan Power Supply Replace
  • $44.97
  • $34 .68
  • New for BESTEC MODEL TFX 0250D5W N-ew 300W 1 Fan Power Supply Replace...
    TOPOWER TOP-300W1U-PFC 24Pin 300W Single Server Power Supply...
    • $69.99
    • $49 .99
    • Free Shipping

    TOPOWER TOP-300W1U-PFC 24Pin 300W Single Server Power Supply
  • $69.99
  • $49 .99
  • TOPOWER TOP-300W1U-PFC 24Pin 300W Single Server Power Supply...
    300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply NEW...
    • $51.68
    • $42 .86
    • Free Shipping

    300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply NEW
  • $51.68
  • $42 .86
  • 300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply NEW...
    Sdgr-Tfx300 300W Tfx12V V2.31 Power Supply,...
    • $40 .00
    • $20.5 Shipping

    Sdgr-Tfx300 300W Tfx12V V2.31 Power Supply
  • $40 .00
  • Sdgr-Tfx300 300W Tfx12V V2.31 Power Supply,...
    Athena Power AP-AT30 300W AT Power Supply, AT 115 / 230 V 50/60 Hz...
    • $18 .89
    • Free Shipping

    Athena Power AP-AT30 300W AT Power Supply
  • $18 .89
  • Athena Power AP-AT30 300W AT Power Supply, AT 115 / 230 V 50/60 Hz...
    Replacement Power Supply for Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W...
    • $57.99
    • $53 .99
    • Free Shipping

    Replacement Power Supply for Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W
  • $57.99
  • $53 .99
  • Replacement Power Supply for Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W...
    Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply...
    • $50 .57
    • Free Shipping

    Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply
  • $50 .57
  • Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply...
    New 300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan...
    • $31.37
    • $26 .08
    • Free Shipping

    New 300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan
  • $31.37
  • $26 .08
  • New 300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 80mm Internal Fan...
    New Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply...
    • $59.69
    • $52 .37
    • Free Shipping

    New Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply
  • $59.69
  • $52 .37
  • New Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B 300W MicroATX Replacement Power Supply...
    300W TFX SFF Bestec TFX0250D5W AcBel PC8046 Power Supply...
    • $41 .05
    • Free Shipping

    300W TFX SFF Bestec TFX0250D5W AcBel PC8046 Power Supply
  • $41 .05
  • 300W TFX SFF Bestec TFX0250D5W AcBel PC8046 Power Supply...
    300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 8cm Internal Fan...
    • $26 .06
    • Free Shipping

    300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 8cm Internal Fan
  • $26 .06
  • 300W POWER SUPPLY for Bestec ATX-250-12E or ATX-300-12E 8cm Internal Fan...
    New Bestec TFX0250D5W REV X3 Upgrade Power Supply TFX 300W...
    • $70.35
    • $59 .68
    • Free Shipping

    New Bestec TFX0250D5W REV X3 Upgrade Power Supply TFX 300W
  • $70.35
  • $59 .68
  • New Bestec TFX0250D5W REV X3 Upgrade Power Supply TFX 300W...
    DC12V 25A 300W Universal Regulated Switching Power Supply for LED Strip / CCTV...
    • $35 .00
    • Free Shipping

    DC12V 25A 300W Universal Regulated Switching Power Supply for LED Strip / CCTV
  • $35 .00
  • DC12V 25A 300W Universal Regulated Switching Power Supply for LED Strip / CCTV...
    Athena Power Zippy P2U-6300P 300W Single 2U Server Power Supply...
    • $98 .99
    • $4.99 Shipping

    Athena Power Zippy P2U-6300P 300W Single 2U Server Power Supply
  • $98 .99
  • Athena Power Zippy P2U-6300P 300W Single 2U Server Power Supply...
    SuperMicro PWS-302-1S 300W 1U Server Power Supply, 300W...
    • $199 .99
    • Free Shipping

    SuperMicro PWS-302-1S 300W 1U Server Power Supply
  • $199 .99
  • SuperMicro PWS-302-1S 300W 1U Server Power Supply, 300W...
    Supermicro PWS-305-PQ 300W ATX Power Supply,...
    • $99 .99
    • Free Shipping

    Supermicro PWS-305-PQ 300W ATX Power Supply
  • $99 .99
  • Supermicro PWS-305-PQ 300W ATX Power Supply,...
    New for Compaq Microtower DX2400 / Business Desktop dx2355 300W Micro ATX Power Supply...
    • $50.63
    • $41 .37
    • Free Shipping

    New for Compaq Microtower DX2400 / Business Desktop dx2355 300W Micro ATX Power Supply
  • $50.63
  • $41 .37
  • New for Compaq Microtower DX2400 / Business Desktop dx2355 300W Micro ATX Power Supply...
    Sparkle Power SPI300U4BB-B204 300W Switching Power Supply...
    • $79.99
    • $68 .99
    • $1.99 Shipping

    Sparkle Power SPI300U4BB-B204 300W Switching Power Supply
  • $79.99
  • $68 .99
  • Sparkle Power SPI300U4BB-B204 300W Switching Power Supply...
    300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply...
    • $37 .27
    • Free Shipping

    300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply
  • $37 .27
  • 300W Hipro HP-P3017F3 LF / SeaSonic SS-250FS Replace MicroATX Power Supply...
    350W Replace SFX Power Supply for Enhance ENP-2725J SFX-1215B 250W 300W...
    • $46 .16
    • Free Shipping

    350W Replace SFX Power Supply for Enhance ENP-2725J SFX-1215B 250W 300W
  • $46 .16
  • 350W Replace SFX Power Supply for Enhance ENP-2725J SFX-1215B 250W 300W...
    Shop by Region: United States | Canada | China | Taiwan
    VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
    Policy & Agreement | Privacy Policy  © 2000-2015 Newegg Inc.  All rights reserved.
    If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.