惠普 塔式图形工作站 Z4G4/750W/2223/16G ECC/256G SSD+1TB 7200RPM SATA 3.5in/NVIDIA Quadro T400 2GB Z4G4/750W/2223/16G ECC/256G SSD+1TB 7200RPM SATA 3.5in/NVIDIA Quadro T1000 4GB Z4G4/750W/2223/32G ECC/256G SSD+1TB 7200RPM SATA 3.5in/NVIDIA Quadro RTXA4000 16GB