HP Pavilion S3530F Desktop PC (1.80 GHz AMD Phenom X4 9100e Quad Core Processor, 4 GB RAM, 500 GB Hard Drive, Blu Ray Drive, Vista Premium) Black (Discontinued by Manufacturer) Desktop PC with AMD Phenom X4 9100e Quad Core Processor and 2 MB L2 + 2 MB Shared L3 Cache 4096 MB PC2-6400 DDR2 SDRAM Memory 2 x 2048 MB, 500 GB 7200RPM SATA Hard Drive NVIDIA GeForce 9500GS Graphics Card with 512 MB Dedicated Video Memory Blu Ray Player and SuperMulti DVD Burner with LightScribe Technology, Wireless LAN 802.11b/g Windows Vista Home Premium 64 with SP1, dims in inches: 13.39 (W) x 4.21 (L) x 8.5" (H) approx., 19.67 lbs.