You can use certain power supplies in more than one platform.
For more specific information on each power supply, see the following documents:
ExtremeSwitching 5320 Series Hardware Installation Guide
ExtremeSwitching 5420 Series Hardware Installation Guide
ExtremeSwitching 5520 Series Hardware Installation Guide
ExtremeSwitching 5720 Series Hardware Installation Guide
ExtremeSwitching 7520 Series Hardware Installation Guide
ExtremeSwitching 7720 Series Hardware Installation Guide