A4Tech OP-57D Blue USB+PS/2
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| Design: | For right hand |
| Description: | Connection interface: PS/2, USB Type A, design: right-handed, operating principle: optical LED, number of keys: 7, optical sensor resolution: 800 dpi |
| Additional Information: | Double click button |
| Type: | Mouse |
| Connection type: | Wired |
| Principle of operation: | Optical LED |
| Connection interface: | PS/2, USB Type A |
| Number of keys: | 7 |
| Built-in Options: | Scroll wheel |
| Number of programmable keys: | 6 |
| Optical sensor resolution: | 800 dpi |