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Athena Power AP-U2ATX80FEP8 800W Single 2U IPC Server Power Supply - 80PLUS Bronze
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#1 Best Seller
in Server Power Supplies
Athena Power AP-U2ATX80FEP8 800W Single 2U IPC Server Power Supply - 80PLUS Bronze

Limited time offer, ends 07/19

  • Main Connector: 20+4Pin
  • Output: +3.3V@20A, +5V@22A, +12V1@32A, +12V2@32A, -12V@1A, [email protected]
  • Input Voltage: 88 - 264 V
  • Input Frequency Range: 47 - 63 Hz
  • Model #: AP-U2ATX80FEP8
  • $231.30
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  • $198.00 
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Athena Power AP-RRU2MK1262 62368 Safety & 80 PLUS Certified  2 x 1200W 2U CRPS Modular Redundant Server Power Supply OEM/ODM OK. W/12V-2X6 Cable for ATX3.1 and support PCIe 5.0
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Athena Power AP-RRU2MK1262 62368 Safety & 80 PLUS Certified 2 x 1200W 2U CRPS Modular Redundant Server Power Supply OEM/ODM OK. W/12V-2X6 Cable for ATX3.1 and support PCIe 5.0

Limited time offer, ends 07/19

  • $1,436.06
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  • $1,288.00 
  • Save: 10%
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SURE STAR 600W 2U SS-2U60EL RACKMOUNT SERVER POWER SUPPLY
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SURE STAR 600W 2U SS-2U60EL RACKMOUNT SERVER POWER SUPPLY
  • Part Number: TOP-600U28
  • Type: ATX12V / EPS12V
  • Form Factor: 2U
  • Fans: 1 x 60 mm
  • Model #: SS-2U60EL
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  • $149.99 
  • $16.99 Shipping
Athena Power AP-U1ATX40P8 400W Single 1U EPS 80 PLUS Server Power Supply
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in 30 days
Athena Power AP-U1ATX40P8 400W Single 1U EPS 80 PLUS Server Power Supply

Limited time offer, ends 07/19

  • Main Connector: 20+4Pin
  • Output Current: +3.3V@16A, +5V@16A, +12V1@11A, +12V2@11A, [email protected], [email protected]
  • Input Voltage: 88 -264 Volts Ac
  • Input Frequency Range: 47 - 63 Hz
  • Model #: AP-U1ATX40P8
  • $121.07
  •  
  • $91.00 
  • Save: 24%
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SeaSonic SS-500L1U 500W Single Server Power Supply - 80PLUS Gold - OEM
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SeaSonic SS-500L1U 500W Single Server Power Supply - 80PLUS Gold - OEM
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  • $148.99 
  • $5.99 Shipping
SuperMicro PWS-1K21P-1R 1200W 1U Server Power Supply 80Plus Gold
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SuperMicro PWS-1K21P-1R 1200W 1U Server Power Supply 80Plus Gold
  • Type: Consumer Electronics
  • Main Connector: 24Pin
  • Output Current: +12V@83/100A, +5VSB@4A
  • Parts: 1 year limited
  • Model #: PWS-1K21P-1R
SuperMicro PWS-504P-1R 500W Server Power Supply
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Supermicro
SuperMicro PWS-504P-1R 500W Server Power Supply
  • Output: +12V@42A, 5V Standby@4A
  • Dimensions: 2.17" x 1.57" x 12.6"
  • Model #: PWS-504P-1R
Thermaltake GF3 1000W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.0 Standard Power Supply, PCIe Gen.5 12VHPWR Connector Included, 10 Year Warranty, PS-TPD-1000FNFAGU-4
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  • $194.99 
  • Free Shipping
Athena Power 1U 800W PSU, AP-1U80P868, 200mm for small industrial rackmounts, UL 62368-1 compliant, 80+ PLATINUM, 12V-2X6 cable for ATX3.1, supports PCIe 5.0 GPU & Server.
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Athena Power 1U 800W PSU, AP-1U80P868, 200mm for small industrial rackmounts, UL 62368-1 compliant, 80+ PLATINUM, 12V-2X6 cable for ATX3.1, supports PCIe 5.0 GPU & Server.

Limited time offer, ends 07/19

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  • $298.00 
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Athena Power AP-U3ATX60FEP8 20+4Pin 3U Power EPS-12V 600W, Support D300, D300L, 349R, 364R, 3055, RS316, E306, E3M16, CS833T, 300S 3U IPC case
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Athena Power AP-U3ATX60FEP8 20+4Pin 3U Power EPS-12V 600W, Support D300, D300L, 349R, 364R, 3055, RS316, E306, E3M16, CS833T, 300S 3U IPC case

Limited time offer, ends 07/15

  • Main Connector: 20+4Pin
  • Output Current: +3.3V@18A,+5V@20A,+12V1@24A, +12V2@24A, -12V@1A, [email protected]
  • Input Voltage: 100 - 264 Volts Ac
  • Input Frequency Range: 47 - 63 Hz
  • Model #: AP-U3ATX60FEP8
  • $81.59
  •  
  • $81.39 
  • Sale Ends in 11 Hours -
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SuperMicro PWS-704P-1R 700W Server Power Supply
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Supermicro
SuperMicro PWS-704P-1R 700W Server Power Supply
  • Type: Consumer Electronics
  • Output Current: +12V@58/62A, +5VSB@3A
  • Parts: 1 year limited
  • Labor: 3 years limited
  • Model #: PWS-704P-1R
Athena Power AP-P4ATX60FE 600W Single EPS12V V2.91 SLI and CrossFire Ready Supports Intel Core i7 Server Power Supply
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Athena Power AP-P4ATX60FE 600W Single EPS12V V2.91 SLI and CrossFire Ready Supports Intel Core i7 Server Power Supply

Limited time offer, ends 07/15

  • Main Connector: 20+4Pin
  • Output Current: +3.3V@22A, +5V@22A, +12V1@18A, +12V2@18A, [email protected], +5VSB@3A
  • Input Voltage: 115 / 230 V
  • Input Frequency Range: 50/60 Hz
  • Model #: AP-P4ATX60FE
9TMRF Dell PowerEdge R630 1100W 80 Plus Platinum Hot Swap Power Supply 09TMRF
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DELL
Refurbished 9TMRF Dell PowerEdge R630 1100W 80 Plus Platinum Hot Swap Power Supply 09TMRF
  • Part Number: 9TMRF
  • Type: Power Supply
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Model #: 9TMRF-REF
HP 578322-B21 1200W 1200W Common Slot High Efficiency Platinum Hot Plug Power Supply
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HP 578322-B21 1200W 1200W Common Slot High Efficiency Platinum Hot Plug Power Supply
  • Input Voltage: 100 V AC to 240 V AC
  • Efficiency: 94%
  • Dimensions: 16.31" x 10.38" x 7.38"
  • Weight: 8 lbs
  • Model #: 578322-B21
Athena Power AP-RRP4ATX6808 800W Redundant 80 PLUS Bronze Certified ATLAS 800 PLUS Server Power Supply with PM Bus
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Athena Power AP-RRP4ATX6808 800W Redundant 80 PLUS Bronze Certified ATLAS 800 PLUS Server Power Supply with PM Bus

Limited time offer, ends 07/19

  • Main Connector: 20+4Pin
  • Output Current: +5V@24A, +12V x [email protected], +3.3V@24A, -5V@0A, [email protected], +5V-SB@4A
  • Input Voltage: 88 -264 Volts Ac
  • Input Frequency Range: 47 - 63 Hz
  • Model #: AP-RRP4ATX6808
For Fujitsu S26113-E567-V50-02 DPS-500XB A Server Power Supply
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Athena Power AP-1U70P868 700W 1U single power supply certified to UL/TUV 62368-1 Safety compliance OEM/ODM available
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Athena Power AP-1U70P868 700W 1U single power supply certified to UL/TUV 62368-1 Safety compliance OEM/ODM available

Limited time offer, ends 07/19

  • Type: 1U EPS
  • Main Connector: 20+4Pin
  • Output Current: +3.3V@18A, +5V@20A,12V1/V2@28/28A, [email protected], [email protected]
  • Output: +3.3V, +5V,12V1/V2, -12V, +5Vsb
  • Model #: AP-1U70P868
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  • $254.00 
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New FSP270-60LE 20pin +4pin 270W Power Supply Computer PSU 1 U 220 V NAS Low Power Equipment Well Tested
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New FSP270-60LE 20pin +4pin 270W Power Supply Computer PSU 1 U 220 V NAS Low Power Equipment Well Tested
  • Main Connector: 20+4Pin
  • Input Voltage: 220C
  • Input Frequency Range: 50/60 Hz
  • Dimensions: 15CM *8.15CM 4.1CM
  • Model #: D007
SUPERMICRO Pws-920P-Sq Supermicro 920 Watt Power Supply
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Supermicro
SUPERMICRO Pws-920P-Sq Supermicro 920 Watt Power Supply
  • Input Voltage: +12V@75A, 5V Standby@4A
  • Dimensions: 2.99" x 1.57" x 14.17"
  • Model #: PWS-920P-SQ
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  • $64.99 
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PSU For Enhance 2U 600W Switching Power Supply ENH-2160-1
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  • $589.60 
  • Free Shipping
Dell Y738P Dell 280 Watt Power Supply For Optiplex Xe Sff
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  • $58.00
  •  
  • $52.01 
  • Save: 10%
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Athena Power AP-PS2MK12P868 1200W PSU  PS2, 80 PLUS Platinum, ATX 3.1 & PCIe 5.0, 12V-2x6 GPU, Dual Fans, Low Ripple, IEC/UL 62368-1 Certified, Global Input, for Servers, Workstations & HPC
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  • $343.00 
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Power Supply 240W For OptiPlex 7010 9010 L240AS-00 AC240AS JNPVV 1GC38 F79TD
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  • $69.99 
  • Free Shipping
Netgear APS600Wv2 600W Power Supply Model APS600W-200NES
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  • $369.99 
  • Free Shipping
Athena Power AP-2UMK12P868 1200W PSU  2U, 80 PLUS Platinum, ATX 3.1 & PCIe 5.0, 12V-2x6 GPU Connector, Dual Smart Fans, IEC/UL 62368-1 Certified, Global Input for Servers & Workstations
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  • $348.00 
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HPE 500W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit - 230 V AC, 380 V DC - 865408-B21
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The primary purpose of a server power supply is converting alternating current (AC) into direct current (DC). The reason is that computers and servers use DC, not AC, which is the type of power that comes from your wall outlet. The power supply is a piece of hardware that powers all the other components of the server with dedicated connectors.

A Redundant Power Supply Prevents Downtime

In a redundant power supply setting, your server works with two or more power supplies. Every PSU can run the server on its own if the other fails. Under normal conditions, each PSU provides half of the power required to operate the server. Most redundant power supplies support hot-swapping, i.e., you can replace the PSU without switching the server off. Hot-swapping prevents downtime, which is particularly important in web servers and mission-critical business environments where you need to keep information and work flowing. While you replace one of the power supplies, the other keeps the server running. It is advisable to install each redundant PSU on a different electrical circuit, so the system will keep working even during a circuit trip or maintenance operations.

Linear vs. Switching Server Power Supplies

When considering power supplies, a linear server and a PC power supply have a more straightforward construction, and require fewer components to convert AC to DC. They tend to be pretty silent, which is an important factor in some work environments. Like server processors, these power supplies work well in systems with efficient cooling. Switching-style power supplies have an internal switch that controls electricity. This leads to less energy consumption. In comparison with a linear PSU, a switching one tends to have smaller components. However, it also produces more noise. 

Certifications Determine the Energy Efficiency of Your Server Power Supply

80 PLUS® is a voluntary certification program that classifies server and PC power supplies, including power strips, by their energy efficiency. You can obtain the energy efficiency value by dividing the amount of power the PSU provides by the amount of energy it draws from the power outlet. 80 PLUS Titanium PSUs are the most efficient, as they offer 92% energy efficiency at 20% load, 94% efficiency at 50% load and 90% efficiency at 100% load. 80 PLUS Platinum power supplies offer 90% efficiency at 20% load, 92% efficiency at 50% load and 89% efficiency at 100% load. 80 PLUS Gold PC power supplies provide 87% efficiency at 20% load, 90% efficiency at 50% load and 87% efficiency at 100% load. There are other 80 PLUS certifications with inferior efficiency requirements, but they are less common in server PSUs. 

Server PSUs Come With Different Connector Types

Server power supplies come with different types of main ATX connectors. The most common connector in older motherboards is the 20-pin one. Most modern motherboards, instead, feature the 24-pin connector. You can also find PSUs with a 20+4 connector, which works with any motherboard, whether it has the 20-pin or 24-pin connector.

Bestselling Server Power Supplies Reviews:

Anonymous
6/8/2023 2:53:05 PM
Dependable PSU

“ I have been using these PSUs now for the last few years. ”

Athena Power AP-U2ATX80FEP8 20+4Pin 800W Single 2U IPC Server Power Supply - 80PLUS Bronze
Marc
5/23/2023 2:02:35 PM
Works, could be better setup, especially given the form factor it is expected to be used in

“ Despite the shortcomings, the price makes this power supply a good deal and I would happily buy it again if it was still available. ”

Athena Power Zippy P1P-5800K2 Flex / 1U IPC Power 800W, Support 80+ Titanium
Jonathan C.
11/30/2022 8:11:42 AM
Good power supply work really well

“ Overall good powersupply. ”

Athena Power AP-U2ATX80FEP8 20+4Pin 800W Single 2U IPC Server Power Supply - 80PLUS Bronze
Alex R
1/16/2022 5:58:03 PM
Fantastic product, very happy with my purchase.

“ I would highly recommend this product for various reasons including, but are not limited to customer service, quality of product, and timely delivery service. ”

DPS-1200FB A 1200W PSU Power Supply + Breakout Board + 12pcs 6pin-to-8pin Cables
Phred
11/3/2020 4:43:53 PM
Only suitable for professional use, not a personal desktop

“ I'm sure this wouldn't be an issue in an isolated server room, as this is a server PSU. ”

Athena Power Zippy P1P-5800K2 Flex / 1U IPC Power 800W, Support 80+ Titanium