The new ASRock Rack EPC621D4I-2M motherboard we are reviewing here is a truly unique product. Fitting in a small mITX form factor, this platform suited for servers with short depth requirements. Most motherboards in this class would use something along the lines of an Intel Xeon E-2100, Intel Xeon D or Atom CPU. Instead, ASRock Rack fits a massive socket LGA3647 for the Intel Xeon Scalable family.
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