Ricoh PFU S26361-F4411-L2 2 GB DDR3‑1333 MHz (PC3‑10600) ECC SDRAM memory module from Fujitsu, featuring error‑correcting code (ECC) for improved data integrity and reliability in workstation and server applications. It uses a 240‑pin DIMM form factor and is designed for compatible Fujitsu systems such as the CELSIUS and ESPRIMO series.