HPE PN# AJ821A is same as PN# AJ821B 

HPE Spare Part # 489865-001

HPE Brocade 8/24c Power Pack+ SAN Switch for BladeSystem c-Class

This is item is AJ821A 

Condition: HPE RENEW with HPE Warranty 

Note: Short wave 8 Gbps SFP+’s (not included)