HP Pavilion Slimline S3407C Desktop PC - REFURBISHED Box Contents - HP S3407F Desktop PC, HP optical mouse, HP multimedia keyboard AMD Athlon 64 X2 Dual-Core 4800+ 2.5 GHz Processor 1MB L2 Cache, 2000MHz Bus 2048 MB DDR2 (PC2-6400) RAM Max - 4GB (2 Slots) 500 GB (7200RPM) SATA Hard Drive