HP xw4400 Intel® Core® Duo 1.80GHz 1GB/160GB DVD/CD-RW WXP Pro Workstation. Processor family: Intel Core2 Duo E4300, Processor clock speed: 1.8 GHz, Processor front side bus: 800 MHz. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM, Memory slots: 4 DIMM slots. Hard drive rotational speed: 7200 RPM. Optical drive type: DVD/CD-RW. Networking features: Integrated Broadcom 5755 Netxtreme Gigabit PCIe LAN, optional Broadcom 5751 Netxtreme Gigabit PCIe