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Supermicro 1000W 1U Redundant Battery Backup Power Module (PWS-1K03B-1R)

  • Internal Li-ion Battery for Server
  • Increases Overall Data Center Power Efficiency
  • Improves Stability and Ease of Maintenance
  • Replaced by:  PWS-1K01B-1R
This item is end-of-life (EOL). Here is the replacement for this product.


The Supermicro PWS-1K03B-1R is a redundant power supply capable of supplying 1000W output power at high 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 1U 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 300,000 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. In addition, this power supply comes equipped with a BBP module to protect from outages in mission-critical server and storage operations. The BBP module is capable of supplying 1000W for 2:30 minutes and 1200W for 1 minute. All materials contained comply with RoHS requirements and is certified by Supermicro.

Compatible with the following power supplies:
  • PWS-1K03A-1R
  • PWS-1K23A-1R
  • PWS-1K28P-SQ
  • PWS-1K68A-1R
  • PWS-2K02P-1R
  • PWS-2K04A-1R
  • PWS-501P-1R
More Information
Total Power Output 1000W
Type Module
Type of Power Supply Battery Back Up Power Supply (BBP)
Form Factor 1U
Dimension (W x H x L) 76 x 40 x 336mm
+5V N/A
+12V 83.3A
+3.3V N/A
5V Standby 4A
Input Voltage Range 11.4-12.6Vdc
Input Frequency Range N/A
Output Type Gold Finger (23 Pair Connector)
8Pin / 4Pin (12V) Connector N/A
Voltage / Current No
Energy Efficiency N/A
80 Plus Certification N/A
Warranty 1 year warranty
Product Environmental Compliance RoHS and REACH compliant, details available upon request
PWS-1K03B-1R Spec Sheet February 2017

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