This is an AMD EPYC 9255 server processor, part of AMD's EPYC 9005-series ("Turin") line of data-centre CPUs built for dual- and single-socket rack servers. It's sold as a bare "tray" unit -- meaning just the processor itself, with no retail box, heatsink, or fan included, as is standard for CPUs bought for pre-built or custom server integration rather than DIY desktop building. This catalog listing doesn't itself state the exact core count, clock speed, or cache size, and EPYC 9005-series SKUs vary considerably across the range, so buyers who need those exact figures for a build should check AMD's own EPYC 9255 datasheet rather than assume specifications from the model number alone.