Ricoh PFU S26361-F4083-E464 64 GB DDR4‑2933 MHz (PC4‑23400) load‑reduced registered memory module from Fujitsu designed for enterprise server environments. It features ECC (Error‑Correcting Code) for enhanced data integrity, load‑reduced DIMM (LRDIMM) technology to reduce electrical load on the memory bus, and a quad‑rank ×4 configuration in a 288‑pin DIMM form factor