This is a used computer that has been fully refurbished and may contain minor blemishes. Keyboard and mouse are not included. USB: Front Panel – two USB 2.0, two USB 3.0; USB: Back Panel – two USB 2.0, two USB 3.0; External Connectors Audio - Back Panel : two connectors for line-out and line-in/ microphone; Front Panel : two connectors for microphone and headphone ; Network Adapter: one RJ45 connector ; Serial: one 9-pin connector 16550C compatible ; Parallel: one 25-pin connector; Two Display Ports.
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