Windows XP PRO 32 bits SP3- Dell OptiPlex 990 SFF i7, MAX Ram, 512 GB SSD, 1 AÑO
512GB SSD-San Disk X400 Solid State Hard Drive. Many corporate and industrial Programs will ONLY still run on Windows XP 32 bit. This is the last Dell Optiplex in the 900 family to officially support Windows XP with drivers and firmware.