... Pentium 4, core 2 duo ,dual core,core 2 QuadFSB 1333/1066/800MHZDual Channel Support 2*DDR3, 2*DDR2PCI 2x PCI, ... 100-16,000Hz9.Sensitivity: -42±2dB10.Impedance: ≤2.2K OhmKeyboard Specifications:1, PS/2 or USB port available2, Multiple languages available, including ... -ECC memory DIMMSpeaker Specifications:Two (2) Satellite Speakers Driver Unit: 2.25-inch THD: 0.2% Impedance: 6 Ohm Frequency Response ...