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Supermicro 2200W 2U Redundant Power Supply (PWS-2K21A-2R)

  • PMBus 1.2 Support for Remote Management
  • Optimized for 2U Server
  • 80 Plus Titanium
  • Supermicro Certified
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The Supermicro PWS-2K21A-2R is an 80 Plus Titanium power supply capable of supplying 2200W output power at 96% efficiency. Enjoy the simplicity of active power factor correction (PFC) and automatically correct AC input for a full range of voltages. Features a card edge connector for connection with the backplane of compatible Supermicro 2U systems. This power supply is designed to not only provide you reliable power to your Supermicro server but also protects it from over voltage, over current and short circuiting via protective circuitry embedded into the unit. Rest easy knowing your hardware will be up and running with a mean-time between failure (MTBF) of greater than 200,000 hours and an LED indicator to keep you informed on normal/abnormal conditions for your PSU. This power supply is redundant to safe-guard your system from power failure and allows for hot-swap replacement to eliminate system downtime. All materials contained comply with RoHS requirements and is certified by Supermicro.

More Information
Total Power Output2200W
Type of Power SupplyPower Supply
Form Factor2U
Dimension (W x H x L)106.5 x 203.3 x 82.4 mm
+5V N/A
+12V100A (1200W) 165A (1980W) 166.6A (2000W) 174.17A (2090W) 183.33A (2200W)
5V StandbyN/A
Input Voltage Range100-127Vac / 1200W 200-220Vac / 1800W 220-230Vac / 1980W 230-240vac / 2090W (TUV/CB) 220-240Vac / 2200W (UL/cUL only) 180-220Vac / 2090W (UL/cUL only) 230-240Vdc / 2090W (CQC only)
Input Frequency Range50-60Hz
Input Current Range100-127Vac / 12 – 9.5A 200-220Vac / 10 – 9.5A 220-230Vac / 10 – 9.5A 230-240Vac / 10 – 9.8A 220-240Vac / 11.8 – 9.6A (UL/cUL only)
Output TypeGold Finger
8Pin / 4Pin (12V) ConnectorN/A
Voltage / CurrentYes
Energy Efficiency96% Peak
80 Plus Certification80 Plus Titanium
Validated SystemsSYS-4028GR-TVRT, SYS-4028GR-TXR, SYS-4028GR-TXRT, SYS-4029GP-TVRT
Warranty1 year warranty
Product Environmental ComplianceRoHS and REACH compliant, details available upon request
PWS-2K21A-2R Spec Sheet PDF April 2017
PWS-2K21A-2R 80 PLUS Test Report PDF April 2010

This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to