8GB DDR4 2666 PC4-2666 2RX8 ECC REG Server Memory — FOR 876319-081 878490-001 876181-B21

Compatible replacement module for part numbers 876319-081, 878490-001 and 876181-B21. This is an 8GB DDR4 server memory module, PC4-2666 specification, configured as 2RX8 and provided as ECC REG (error-correcting, registered) memory. Built for systems that require stable, registered ECC DIMMs, it delivers reliable, buffered memory for server and workstation environments.