16GB (2Rx4) PC3-12800R Registered Server Memory — Compatible with 672631-B21 / 672612-081 / 684031-001

High-capacity 16GB registered DDR3 server module, PC3-12800R (2Rx4) designed as a direct replacement or upgrade for systems using part numbers 672631-B21, 672612-081 and 684031-001. This 16G module delivers reliable, error-checked performance for servers and workstations that require PC3-12800R registered memory.