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A-Tech 64GB Kit (8x8GB) Memory RAM for HP Z440 Workstation - DDR4 2133MHz PC4-17000 ECC Registered RDIMM 1Rx4 1.2V - Server
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Refurbished: HP Z440 Workstation Desktop PC, Intel Xeon E5-1620 v3 3.5GHz, 16 GB DDR4 RAM, 512 GB SSD, Nvidia Quadro K2200, Windows 10 Pro Grade B - Newegg.com
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HP Z440 Business WorkStation Desktop PC: Intel Xeon E5-1630 v3, 2TB HDD, 32 GB DDR4, NVIDIA Quadro K420, DVD-RW, Windows 10 Pro (Renewed)
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