HP Compaq dx2420 Microtower PC. Processor model: Intel® Pentium® Dual-Core E5200 processor, Processor front side bus: 800 MHz. Internal memory type: PC2-6400 DDR2 800 SDRAM, Maximum internal memory: 4 GB, Memory slots: 2 DIMM. Hard drive speed: 7200 RPM. Optical drive type: SATA DVD+/-RW 16x SuperMulti LightScribe. Maximum graphics adapter memory: 8-256 MB