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Dr.D 21.5 desktop Barebone System computer all in one Built-in 2 Channel stereo touch screen mini
| Basic Parameters | ||
| Chipset | Integration | Integration |
| Processor | Intel® Celeron® Processor J1900 Quad Core | Intel® Celeron® Processor J4105 Quad Core |
| Memory | 1x SO-DIMM, 1.35V DDR3(4GB/8GB Optional ) | 1x SO-DIMM, 1.2V DDR4(4GB/8GB Optional ) |
| Storage | 1x m-SATA SSD(128GB/256GB Optional), 1x 2.5 SATA HDD (500GB/1TB Optional) | 1x m.2 SSD(128GB/256GB Optional), 1x 2.5 SATA HDD (500GB/1TB Optional) |
| Screen | 21.5 Inch | |
| 1920*1080 full HD | ||
| 178/178 viewing angle | ||
| Graphics | Integrated Intel HD | |
| Optional | J1900 CPU | J4105 CPU |
| I/O | HDMI*1 | 1XHDMI |
| USB2.0*3 USB3.0*1 | 2x USB3.0,2x USB2.0 | |
| RJ45*1 DC*1 | RJ45*1 DC*1 | |
| line-out*1 Mic-in*1 | line-out*1 Mic-in*1 | |
| Front Panel | 2*USB2.0 | 2*USB2.0 |
| WIFI | 802.11 b/g/n (PCI-E), Buetooth optional | |
| Speaker | Built-in 2 Channel stereo | |
| Power Supply | 12V, 5A 60W Power Adaptor | |
| O/S | Support Windows 7/10 or Windows 10 | |
| Color | White | |





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