A:AnswerWe do not have an exact manufacture date on this desktop. But we can tell you that is the 4th Gen Intel Core i5-4570 processor. We are currently on the 8th generation Intel processors with the 9th generation coming very soon.
A:AnswerThere is no space for an additional hard drive. These are the only available expansion slots: (2) PCI Express x1 (v2.0), (1) PCI Express x 16 (v2.0 - wired as x4) and (1) PCI Express x16 (v3.0). There is 1600-MHz DDR3 SDRAM (4) DIMM slots enabling up to 32 GB, dual channel memory support. Here is more information on this desktop: https://support.hp.com/us-en/document/c03832938
A:AnswerThe warranty period depends on the computer and the company doing the refurbishing. In this case, it's a 1 year warranty on parts and manufacturing.
A:AnswerI've had 3 versions of this machine with different processors and internal configurations. This particular one with an i5 processor has 2 displayport and one VGA connection for monitors. Yes, you can use wireless kb and mouse if they have the dongle that plugs into a USB port.