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HP Pro 4000 SFF E8400 3.00GHz | Revive IT
Dell Desktop 7060 PC SFF core i5 8400 3.40 32GB emmc 1TB + 1TB HD Window 10 Pro* | eBay
Refurbished: Office use computer HP Compaq Pro 6305 Small Form Factor (SFF) Computer AMD 8GB 1TB HDD| 20 inch Tecnii Monitor(HDMI) |Intel HD Graphics| Win 10 Home -64 Bit, Free WiFi Adapter - Newegg.com
Amazon.com: HP 600 G4 SFF Desktop Intel i5-8400 UP to 4.00GHz 16GB DDR4 New 512GB NVMe SSD Built-in AX210 Wi-Fi 6E BT Dual Monitor Support Wireless Keyboard and Mouse Win11 Pro (Renewed) :
Custom HP Z2 G4 SFF Workstation - Refurbished | PCSP
Amazon.com: HP 600 G4 SFF Desktop Intel i5-8400 UP to 4.00GHz 16GB DDR4 New 512GB NVMe SSD Built-in AX210 Wi-Fi 6E BT Dual Monitor Support Wireless Keyboard and Mouse Win11 Pro (Renewed) :
Hp Elitedesk 800 G2 SFF - Jumla Bei Limited
HP Compaq 8000 Elite SFF Desktop Intel Core 2 Quad E8400 4GB 250GB HDD Win 7 Pro | eBay