"Ordered two systems based on the same Amptron motherboard. Slow delivery; inaccurate sales information. Both systems had defective on-board audio, which CSO, to their credit, replaced with cheapo sound cards. Shortly after installation, the power supply on the second system failed. To avoid the hassle of returning the power supply, I ordered a second from CSO, which also failed shortly after installation. CSO has low pricing and the quality to match."