HP D4290A is a 64MB FastPage SIMM with parity error checking, designed for HP E-Series NetServer systems. The module features 72-pin configuration, 60ns access time, and 36-bit architecture supporting ECC functionality. Compatible with NetServer E60, E80, and similar legacy HP server platforms from the 1990s-early 2000s era. Typical applications include memory upgrades for legacy enterprise servers running NetWare, Windows NT, or early Linux deployments where reliability and data integrity are critical. This refurbished unit has been tested and guaranteed fully functional. Available via quote.