Amazon.com: HP Z240 Tower Workstation, Intel Xeon E3-1230 v5 up to 3.8GHz, 16GB DDR4 RAM, 512GB SSD, USB 3.0, NVIDIA Quadro K620 2GB (Supports 4K), Display Port, DVI, Windows 10 Professional 64-bit (
HP Z240 Xeon E3-1240 v6 @ 3.70GHz 32 GB Ram NVIDIA P600 1TB SSD Win 10 Pro | eBay
HP Z240 Tower Xeon E3-1245v5 @ 3.5 GHz 16 GB Ram 512 GB SSD W5100 Win 11 Pro | eBay
HP Z240 Workstation 1 x Core i7 i7 6700 8 GB RAM 1 TB HDD Small Form Factor Black Windows 7 Professional 64 bitIntel HD Graphics 530 DVD Writer Serial ATA600 Controller
HP Z240 Mid-Tower Workstation | Tech Supply Direct