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Supermicro PWS-2K20A-1R 2200W 1U Redundant Power Supply

 

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Supermicro
Part no PWS-2K20A-1R
Ascent part no 798961
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The Supermicro PWS-2K20A-1R is a high-efficiency, high-performance 1U redundant power supply designed for Supermicro server solutions and compatible chassis. Delivering up to 2200 watts of output with PMBus 1.2 support, it ensures continuous and reliable power delivery for mission-critical and high-density data centre applications. Its hot-swappable and redundant design maximises server uptime, and it is fully equipped with auto-ranging capability, active Power Factor Correction (PFC), and meets 80 PLUS Platinum efficiency standards.

Technical Specifications

Product NameSupermicro PWS-2K20A-1R 2200W 1U Redundant Power Supply
ManufacturerSupermicro
Model NumberPWS-2K20A-1R
Product LineSupermicro Redundant Power Supply Units
Product CategoryPower supplies
ELECTRICAL
Maximum Output Power2200 W
Input Voltage Range100-240 V AC, auto-ranging
Input Frequency50-60 Hz
EfficiencyUp to 94% at 50% load (80 PLUS Platinum Certified)
Input Current15A-12A (100-240V at max load)
PHYSICAL
Form Factor1U
RedundancyYes (N+1 hot-swappable modules)
Dimensions76 x 336 x 40 mm (W x D x H)
WeightApprox. 2.4 kg
FEATURES
Hot-Swap CapableYes
PMBus SupportVersion 1.2
Active PFCYes
CoolingInternal fans (front-to-back airflow)
Remote ManagementPower status monitoring via PMBus
CONNECTIVITY
Power ConnectorsProprietary connector for Supermicro compatible chassis
Output ConnectorsMain power outputs distributed via chassis power distribution board
COMPLIANCE
Safety CertificationsUL, CB, CCC, CE, TUV, Nemko, BSMI
Efficiency Standards80 PLUS Platinum
RoHSYes
COMPATIBILITY
Supported ChassisSelected Supermicro 1U server chassis (e.g., SC813, SC819, SC815)
Warranty Information2 years return-to-base (RTB) manufacturer warranty.
Overall SentimentGenerally positive: Users and reviewers consistently highlight the power supply’s robust reliability, efficiency, and suitability for enterprise/datacentre use; few negative remarks, aside from system compatibility restrictions.

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Supermicro
Part no PWS-2K20A-1R
Ascent part no 798961
  • Free NZ deliveryNo hidden fees
  • 100% Kiwi owned34 years in business
  • Net Promoter Score 94Rated by our customers
Questions? (04) 802 3890


"Always fast delivery." Dwayne, 25 September 2026
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