The HPE ProLiant DL580 Gen10 Server is a high-density, four-socket server with high performance, scalability and reliability, all in a 4U chassis. Supporting the latest Intel? Xeon? Scalable processors, the HPE ProLiant DL580 Gen10 Server offers greater processing power, up to 6 TB of faster memory, IO of up to sixteen PCIe 3.0 slots, plus the intelligence and simplicity of automated management with HPE OneView and HPE iLO 5. The P21273-AA1 stands for HPE Proliant DL580 G10 5220 (2.2GHz/18-core/125W) 2P 64G P408i-p 8SFF 4*800W RPS server.