Ricoh PFU MCX2CD731 64 GB DDR4‑2400 MHz (PC4‑19200) Registered ECC RDIMM memory kit from Fujitsu, consisting of two 32 GB DDR4 RDIMM modules designed for enterprise server use. It features Error‑Correcting Code (ECC) and registered DIMM technology for enhanced stability and data integrity, a 288‑pin form factor, dual‑rank ×4 architecture, and CL17 timings at 1.2 V. This kit is commonly used in Fujitsu PRIMEQUEST and similar servers requiring high‑capacity, reliable DDR4 memory