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iStarUSA TC-1U30FX8 300W Single 1U Flex ATX 80 Plus High Efficiency Power Supply - OEM
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iStarUSA TC-1U30FX8 300W Single 1U Flex ATX 80 Plus High Efficiency Power Supply - OEM
  •  
  • MXN$2,525.31 
  • MXN$864.83 Shipping
HPE 800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit P38995B21
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  •  
  • MXN$3,856.99 
  • MXN$1,218.75 Shipping
Juniper QFX-SFP-DAC-5MA SFP+ Network Cable - 16.4 ft Network Cable - First End: SFP+ Network - Black
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  •  
  • MXN$4,295.47 
  • MXN$1,056.47 Shipping
Tripp Lite Tall Riser Panels Hot/Cold Aisle Containment System 600mm Racks
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Tripp Lite Tall Riser Panels Hot/Cold Aisle Containment System 600mm Racks
  • Type: Home and Garden
  • Weight: 12.35
  • Model #: SRCTMTR600TL
  •  
  • MXN$2,134.39 
  • MXN$1,409.37 Shipping
Tripp Lite Tall Riser Panels Hot/Cold Aisle Containment System 750mm Racks
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Tripp Lite Tall Riser Panels Hot/Cold Aisle Containment System 750mm Racks
  • Type: Home and Garden
  • Weight: 13.67
  • Model #: SRCTMTR750TL
  •  
  • MXN$2,534.59 
  • MXN$1,416.35 Shipping
Juniper CBL-PWR-10AC-STR-US Standard Power Cord
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Juniper CBL-PWR-10AC-STR-US Standard Power Cord
  • Type: Standard Power Cord
  • Model #: CBL-PWR-10AC-STR-US
  •  
  • MXN$1,265.55 
  • MXN$1,202.66 Shipping
iStarUSA TC-700PD8B 700W Single PS2 Power Supply
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iStarUSA TC-700PD8B 700W Single PS2 Power Supply
  • Type: ATX12V / EPS12V
  • Main Connector: 20+4Pin
  • Output: +3.3V@24A, +5V@30A, +12V1@16A, +12V2@16A, +12V3@16A, +12V4@16A, [email protected], +5Vsb@4A
  • Fans: 1
  • Model #: TC-700PD8B
  •  
  • MXN$4,871.99 
  • MXN$995.01 Shipping
SuperMicro PWS-920P-1R 920W high-efficiency (94%+) power supply with PMBus BULK
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SuperMicro PWS-920P-1R 920W high-efficiency (94%+) power supply with PMBus BULK
  • Type: Consumer Electronics
  • Output Current: +12V@75A, +5VSB@4A
  • Dimensions: 13.58" x 2.99" x 1.58"
  • Parts: 1 year limited
  • Model #: PWS-920P-1R
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
  •  
  • MXN$1,743.47 
  • MXN$1,106.62 Shipping
110-230V 600W PSU 80Plus Bronze SFX Micro Full Module Professional E-sports Electronic Game PC Power Source
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110-230V 600W PSU 80Plus Bronze SFX Micro Full Module Professional E-sports Electronic Game PC Power Source
  • Part Number: 600w
  • Type: SFX
  • Main Connector: 20+4Pin
  • Input Voltage: 110-230V
  • Model #: SFX-600W
New For Dell OptiPlex 7060 5060 3060 PC Power Supply L260AM-00 AC260AM-00 H260EBM-00 B260EBM-00 L260EBM 6pin Power Supply
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New For Dell OptiPlex 7060 5060 3060 PC Power Supply L260AM-00 AC260AM-00 H260EBM-00 B260EBM-00 L260EBM 6pin Power Supply
  • Output: 12V
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Dimensions: 22CM*8.1CM*6.2CM
  • Model #: LY421
New For NAS POS Cash Register Machine ATX 350W PSU 180-264V 24Pin For Mini ITX Case Small 1U Flex PC Power Supply
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New For NAS POS Cash Register Machine ATX 350W PSU 180-264V 24Pin For Mini ITX Case Small 1U Flex PC Power Supply
  • Part Number: ATX-350W
  • Type: 1U FLEX
  • Main Connector: 20+4Pin
  • Output: 10A,33W
  • Model #: ATX-350W
1600W Support Dual CPU Power Supply ATX3.0 PCIe5.0 PC Active Unit Professional E-Sports Video Game Computer PSU
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1600W Support Dual CPU Power Supply ATX3.0 PCIe5.0 PC Active Unit Professional E-Sports Video Game Computer PSU
  • Part Number: FM-1600W
  • Type: ATX
  • Main Connector: 20+4Pin
  • Output: 25A
  • Model #: FM-1600W
Brand New HK280-23FP HK280-25FP PCB037 PCB038 Power Supply for Q85 Q87 Q77 Q75 180W 14pin+4pin Well tested
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Brand New HK280-23FP HK280-25FP PCB037 PCB038 Power Supply for Q85 Q87 Q77 Q75 180W 14pin+4pin Well tested
  • Type: HK
  • Main Connector: 14+4pin
  • Input Voltage: 200 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Model #: LY326
110V 220V Gaming pc power supply SFX650 for SFX Full Modular 80plus Bronze  Power Supply XH650 550W FSP MS450 Working
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110V 220V Gaming pc power supply SFX650 for SFX Full Modular 80plus Bronze Power Supply XH650 550W FSP MS450 Working
  • Type: SFX
  • Input Voltage: 110 - 220 V
  • Input Frequency Range: 50/60 Hz
  • Weight: 1300g
  • Model #: K0280
110-230V RGB PSU 20+4Pin 12V ATX 600W E-Sports Video Game Computer Power Supply Colorful Cooling Fan
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110-230V RGB PSU 20+4Pin 12V ATX 600W E-Sports Video Game Computer Power Supply Colorful Cooling Fan
  • Part Number: ATX-600W
  • Type: ATX
  • Main Connector: 20+4Pin
  • Output Current: 3.3V 15A 50W
  • Model #: ATX-600W
ATX 400W RGB Colorful PSU 110/230V 24Pin 12V Desktop E-Sports Video Game Computer Power Supply Silent
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ATX 400W RGB Colorful PSU 110/230V 24Pin 12V Desktop E-Sports Video Game Computer Power Supply Silent
  • Part Number: ATX 400W
  • Type: ATX
  • Main Connector: 20+4Pin
  • Output Current: 3.3V 12A 40W
  • Model #: ATX-400W
1U Mini Flex PC Power Supply Full Modular 110-264V ATX 600W PSU For ENP-7660B K39 A4 S3 G5 ITX Case Desktop
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1U Mini Flex PC Power Supply Full Modular 110-264V ATX 600W PSU For ENP-7660B K39 A4 S3 G5 ITX Case Desktop
  • Part Number: 600W
  • Type: Mini ITX
  • Main Connector: 20+4Pin
  • Input Voltage: 100 - 240 V
  • Model #: FM-600W
For Lenovo FSP400-40AGPAA SP50H29513 00PC738 Max 400W 10pin With Graphics Card 6pin Server Power Supply
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For Lenovo FSP400-40AGPAA SP50H29513 00PC738 Max 400W 10pin With Graphics Card 6pin Server Power Supply
  • Type: FSP
  • Main Connector: 10Pin
  • Output: 12V
  • Input Voltage: 100 - 240 V
  • Model #: K00713
New 300W PSU For Antec AT With Switch adjustable PC Power Spark Machine PP-300V Power P8P9 115/230V Power Supply
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New 300W PSU For Antec AT With Switch adjustable PC Power Spark Machine PP-300V Power P8P9 115/230V Power Supply
  • Input Voltage: 115/230V
  • Input Frequency Range: 50/60 Hz
  • Weight: 1100g
  • Package Contents: PSU*1
  • Model #: K00235
Original  Power Supply PA-2231-8 656932-001  658263-001 MAX 230W PSU for 8300 AIO Power Supply
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Original Power Supply PA-2231-8 656932-001 658263-001 MAX 230W PSU for 8300 AIO Power Supply
  • Input Frequency Range: 50/60 Hz
  • Dimensions: 146*85*34mm
  • Weight: 700g
  • Package Contents: PSU*1
  • Model #: K00775
New White PC PSU 20+4Pin 12V ATX 650W 110-264V Professional E-Sports Video Game Computer Power Supply 12cm Fan
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New White PC PSU 20+4Pin 12V ATX 650W 110-264V Professional E-Sports Video Game Computer Power Supply 12cm Fan
  • Type: ATX
  • Main Connector: 20+4Pin
  • Input Frequency Range: 50/60 Hz
  • Fans: 1 x 120 mm
  • Model #: ATX-650W
110V 220V For PC ATX 500W 600W 800W Max 80Plus Gold 12V PSU Universal High-end Video Card Gaming Power Supply
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110V 220V For PC ATX 500W 600W 800W Max 80Plus Gold 12V PSU Universal High-end Video Card Gaming Power Supply
  • Part Number: 500W
  • Type: ATX
  • Main Connector: 20+4Pin
  • Input Voltage: 100-240V
  • Model #: LX-500W
80Plus Gold RGB ATX 850W Full Modular PSU Professional Game Video PC Mute Power Supply Maximum Peak 1000w
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80Plus Gold RGB ATX 850W Full Modular PSU Professional Game Video PC Mute Power Supply Maximum Peak 1000w
  • Type: ATX
  • Main Connector: 20+4Pin
  • Input Frequency Range: 50/60 Hz
  • Fans: 1 x 120 mm
  • Model #: FM-Color850W
Well Tested 220W Power Supply FSP220-30FABA PS-3221-9AE PS-3221-9AB PE-3221-2 D15-220N1A For B630 X4630G X6630G 12PIN+4PIN PSU
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Well Tested 220W Power Supply FSP220-30FABA PS-3221-9AE PS-3221-9AB PE-3221-2 D15-220N1A For B630 X4630G X6630G 12PIN+4PIN PSU
  • Type: FSP
  • Main Connector: 12+4pin
  • Input Frequency Range: 50/60 Hz
  • Weight: 1000g
  • Model #: LY384
New For Z2 G4 800 880 G3 G4 G5  MT Workstation Power Supply PA-4501-1 HA,DPS-500AB-32A 500W PSU L07304-001 L07304-003 901759-003
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New For Z2 G4 800 880 G3 G4 G5 MT Workstation Power Supply PA-4501-1 HA,DPS-500AB-32A 500W PSU L07304-001 L07304-003 901759-003
  • Main Connector: 4Pin+4Pin+6Pin+(6+2)Pin
  • Output: 12V
  • Input Voltage: 100-240V
  • Input Frequency Range: 50/60 Hz
  • Model #: LY406
Genuine New For Lenovo 210W 10Pin Power Supply FSP210-20TGBAA FSP210-20TGBAB 54Y8977 PA-2221-3 PCE025 HK310-71PP 00PC746
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Genuine New For Lenovo 210W 10Pin Power Supply FSP210-20TGBAA FSP210-20TGBAB 54Y8977 PA-2221-3 PCE025 HK310-71PP 00PC746
  • Type: FSP
  • Main Connector: 10pin
  • Output: +12V==17.5A -12V==0.2A
  • Input Voltage: 100 - 240 V
  • Model #: K0203
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
SP50A33618 54Y8877 54Y8851 54Y8900 54Y8902 PS-4281-02 FSP280-40PA 14 +4 PIN for Lenovo M82 M92 H530 M8400T 280W Power Supply
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SP50A33618 54Y8877 54Y8851 54Y8900 54Y8902 PS-4281-02 FSP280-40PA 14 +4 PIN for Lenovo M82 M92 H530 M8400T 280W Power Supply
  • Main Connector: 14+4Pin
  • Output: 12V
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Model #: K00311
Well-Tested Suitable for HP 280 G3 400 G5 SFF 180W D18-180P2A L07658-002 L07658-001 PA-1181-3HB Authentic Switching Power Supply
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Well-Tested Suitable for HP 280 G3 400 G5 SFF 180W D18-180P2A L07658-002 L07658-001 PA-1181-3HB Authentic Switching Power Supply
  • Main Connector: 4PIN+7PIN+4PIN
  • Output: 12V
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Model #: K00233
DPS-200PB-203A For KSA-180S2  DPS-200PB-185A 100-240V 47-63HZ 12V+52V 180W Max Switching Power Supply
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DPS-200PB-203A For KSA-180S2 DPS-200PB-185A 100-240V 47-63HZ 12V+52V 180W Max Switching Power Supply
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 47 - 63 Hz
  • Weight: 700g
  • Package Contents: PSU*1
  • Model #: K00200

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.