The HPE P67091-B21 is the Intel Xeon Silver 4510 processor kit for HPE ProLiant DL360 and DL380 Gen11 servers. This 5th Gen Xeon Scalable processor offers 12 cores and 24 threads at 2.4GHz base, up to 4.1GHz turbo, with 30MB L3 cache and a 150W TDP. It is used to add a second processor or replace an existing one. A matching heat sink kit is required and ordered separately.