Dell Optiplex 9020 refurbished all in one computer for sale

Quick Specifications:
Manufacturer	Dell
Model Number	Optiplex 9020 AIO
Display Size	23"
Display Type	Full HD (1920 x 1080)
Product Form Factor	All-in-One
CPU (Processor)	Intel Core i5 (4th Gen) 4570S / 2.9 GHz
RAM (Memory)	8 GB
Chipset	Intel Q87 Express
Hard Disk Drive (HDD)	500GB SATA
Optical type	DVD-writer
Form Factor	All-In-One
Operating System	Windows 10 Professional
Connections	4 x External USB 3.0 ports (2 side, 2 rear); 4 x External USB 2.0 ports; 1 x RJ-45; 1 x VGA; 1 x HDMI; 2 x PS/2; 1 x Line-in (stereo/microphone); 2 x Line-out (1 side for headphone/1 rear for speaker)
Expansion Slots	2 (total) / 1 (free) x SO-DIMM 204-pin 1 (total) / 0 (free) x PCIe Half Mini Card
Dimention (WxDxH)	22.6 in x 6.9 in x 17.4 in
Weight	11.33 Kilogram Approx
Warranty	1 Year Return to Base

Operating System (OS) *	Windows 7 Professional Windows 7 Professional Windows 10 Professional Windows 10 Professional
RAM Upgrade Option	8GB 8GB 16GB [+$90.00] 16GB [+$90.00]
HDD Upgrade Option	500G SATA 500G SATA 1 TB SATA [+$55.00] 1 TB SATA [+$55.00] 128G SSD [+$30.00] 128G SSD [+$30.00] 240G SSD [+$65.00] 240G SSD [+$65.00] 480G SSD [+$95.00] 480G SSD [+$95.00] 1TB SSD [+$135.00] 1TB SSD [+$135.00]
Antivirus	eSeT Internet Security 3 Devices 12 Months [+$25.00] eSeT Internet Security 3 Devices 12 Months [+$25.00] eSeT Internet Security 3 Devices 12 Months [+$25.00]

Dell OptiPlex 9020 AIO Desktop Computer i5 4570S / 2.9GHz Windows 10 Pro