MC309CH/A 2.5QC/2X2GB/500GB/6750M-512M顯存-CHN MC812CH/A 2.7QC/2X2GB/1TB/6770M-512M顯存-CHN MC813CH/A 2.7QC/2X2GB/1TB/6770M -512M顯存-CHN MC814CH/A 3.1QC/2X2GB/1TB/6970M-1G顯存-CHN