当店はPCパーツを販売する専門ショップです。■CPUとご搭載いただくマザボードの相性についてご不安のある方は、ご落札前に事前に質問にてお問い合わせください。■当商品はES品ではなく正規品です W-2191B is a 64-bit 18-core x86 enterprise performance workstation microprocessor introduced by Intel in 2017.This processors, which is fabricated on an enhanced 14nm+ process based on the Skylake server microarchitecture, operates at 2.3 GHz with a TDP of 140 W and a turbo boost frequency of up to 4.3 GHz.This chip supports up to 512 GB of quad-channel DDR4-2666 ECC memory.This specific model appears to be a special model for Apple for their iMac Pros.